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Finding the Fourth Proportional to 74,468.76, 111,503.90 and 62,659

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Solution

The fourth proportional to 74,468.76, 111,503.90 and 62,659 is: 93,820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,468.76 : 111,503.90 = 62,659 : x
  2. Step 2: Convert to fraction form
    74,468.76/111,503.90 = 62,659/x
  3. Step 3: Cross multiply
    74,468.76x = 111,503.90 × 62,659
  4. Step 4: Simplify right side
    74,468.76x = 6,986,722,870.10
  5. Step 5: Solve for x
    x = 6,986,722,870.10/74,468.76
  6. Step 6: Final answer
    x = 93,820.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.