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Finding the Fourth Proportional to 498,419.56, 747,625.50 and 124,440.04

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Solution

The fourth proportional to 498,419.56, 747,625.50 and 124,440.04 is: 186,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,419.56 : 747,625.50 = 124,440.04 : x
  2. Step 2: Convert to fraction form
    498,419.56/747,625.50 = 124,440.04/x
  3. Step 3: Cross multiply
    498,419.56x = 747,625.50 × 124,440.04
  4. Step 4: Simplify right side
    498,419.56x = 93,034,547,125.02
  5. Step 5: Solve for x
    x = 93,034,547,125.02/498,419.56
  6. Step 6: Final answer
    x = 186,659.10

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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.