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Finding the Fourth Proportional to 74,356.74, 111,000.25 and 63,712.13

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Solution

The fourth proportional to 74,356.74, 111,000.25 and 63,712.13 is: 95,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,356.74 : 111,000.25 = 63,712.13 : x
  2. Step 2: Convert to fraction form
    74,356.74/111,000.25 = 63,712.13/x
  3. Step 3: Cross multiply
    74,356.74x = 111,000.25 × 63,712.13
  4. Step 4: Simplify right side
    74,356.74x = 7,072,061,882.67
  5. Step 5: Solve for x
    x = 7,072,061,882.67/74,356.74
  6. Step 6: Final answer
    x = 95,109.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.