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Finding the Fourth Proportional to 86,773.95, 119,749.59 and 49,048.20

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Solution

The fourth proportional to 86,773.95, 119,749.59 and 49,048.20 is: 67,687.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,773.95 : 119,749.59 = 49,048.20 : x
  2. Step 2: Convert to fraction form
    86,773.95/119,749.59 = 49,048.20/x
  3. Step 3: Cross multiply
    86,773.95x = 119,749.59 × 49,048.20
  4. Step 4: Simplify right side
    86,773.95x = 5,873,501,840.24
  5. Step 5: Solve for x
    x = 5,873,501,840.24/86,773.95
  6. Step 6: Final answer
    x = 67,687.39

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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.