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Finding the Fourth Proportional to 367,436.13, 551,154.60 and 145,820.13

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Solution

The fourth proportional to 367,436.13, 551,154.60 and 145,820.13 is: 218,730.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,436.13 : 551,154.60 = 145,820.13 : x
  2. Step 2: Convert to fraction form
    367,436.13/551,154.60 = 145,820.13/x
  3. Step 3: Cross multiply
    367,436.13x = 551,154.60 × 145,820.13
  4. Step 4: Simplify right side
    367,436.13x = 80,369,435,422.10
  5. Step 5: Solve for x
    x = 80,369,435,422.10/367,436.13
  6. Step 6: Final answer
    x = 218,730.36

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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.