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Finding the Fourth Proportional to 351,172.52, 526,753.26 and 84,931.24

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Solution

The fourth proportional to 351,172.52, 526,753.26 and 84,931.24 is: 127,395.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,172.52 : 526,753.26 = 84,931.24 : x
  2. Step 2: Convert to fraction form
    351,172.52/526,753.26 = 84,931.24/x
  3. Step 3: Cross multiply
    351,172.52x = 526,753.26 × 84,931.24
  4. Step 4: Simplify right side
    351,172.52x = 44,737,807,545.84
  5. Step 5: Solve for x
    x = 44,737,807,545.84/351,172.52
  6. Step 6: Final answer
    x = 127,395.52

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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.