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Finding the Fourth Proportional to 371,884.55, 557,499.66 and 147,402.55

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Solution

The fourth proportional to 371,884.55, 557,499.66 and 147,402.55 is: 220,974.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,884.55 : 557,499.66 = 147,402.55 : x
  2. Step 2: Convert to fraction form
    371,884.55/557,499.66 = 147,402.55/x
  3. Step 3: Cross multiply
    371,884.55x = 557,499.66 × 147,402.55
  4. Step 4: Simplify right side
    371,884.55x = 82,176,871,508.13
  5. Step 5: Solve for x
    x = 82,176,871,508.13/371,884.55
  6. Step 6: Final answer
    x = 220,974.15

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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.