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Finding the Fourth Proportional to 86,840.76, 119,840.24 and 47,096.76

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Solution

The fourth proportional to 86,840.76, 119,840.24 and 47,096.76 is: 64,993.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,840.76 : 119,840.24 = 47,096.76 : x
  2. Step 2: Convert to fraction form
    86,840.76/119,840.24 = 47,096.76/x
  3. Step 3: Cross multiply
    86,840.76x = 119,840.24 × 47,096.76
  4. Step 4: Simplify right side
    86,840.76x = 5,644,087,021.62
  5. Step 5: Solve for x
    x = 5,644,087,021.62/86,840.76
  6. Step 6: Final answer
    x = 64,993.52

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.