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Finding the Fourth Proportional to 56,125.80, 84,285.90 and 29,881.80

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Solution

The fourth proportional to 56,125.80, 84,285.90 and 29,881.80 is: 44,874.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,125.80 : 84,285.90 = 29,881.80 : x
  2. Step 2: Convert to fraction form
    56,125.80/84,285.90 = 29,881.80/x
  3. Step 3: Cross multiply
    56,125.80x = 84,285.90 × 29,881.80
  4. Step 4: Simplify right side
    56,125.80x = 2,518,614,406.62
  5. Step 5: Solve for x
    x = 2,518,614,406.62/56,125.80
  6. Step 6: Final answer
    x = 44,874.45

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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.