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Finding the Fourth Proportional to 86,463.62, 129,582.42 and 44,307.98

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Solution

The fourth proportional to 86,463.62, 129,582.42 and 44,307.98 is: 66,404.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,463.62 : 129,582.42 = 44,307.98 : x
  2. Step 2: Convert to fraction form
    86,463.62/129,582.42 = 44,307.98/x
  3. Step 3: Cross multiply
    86,463.62x = 129,582.42 × 44,307.98
  4. Step 4: Simplify right side
    86,463.62x = 5,741,535,273.71
  5. Step 5: Solve for x
    x = 5,741,535,273.71/86,463.62
  6. Step 6: Final answer
    x = 66,404.06

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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.