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Finding the Fourth Proportional to 73,120.08, 100,900.08 and 41,291.76

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Solution

The fourth proportional to 73,120.08, 100,900.08 and 41,291.76 is: 56,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,120.08 : 100,900.08 = 41,291.76 : x
  2. Step 2: Convert to fraction form
    73,120.08/100,900.08 = 41,291.76/x
  3. Step 3: Cross multiply
    73,120.08x = 100,900.08 × 41,291.76
  4. Step 4: Simplify right side
    73,120.08x = 4,166,341,887.34
  5. Step 5: Solve for x
    x = 4,166,341,887.34/73,120.08
  6. Step 6: Final answer
    x = 56,979.45

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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.