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Finding the Fourth Proportional to 86,407.67, 129,494.86 and 44,883.83

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Solution

The fourth proportional to 86,407.67, 129,494.86 and 44,883.83 is: 67,265.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,407.67 : 129,494.86 = 44,883.83 : x
  2. Step 2: Convert to fraction form
    86,407.67/129,494.86 = 44,883.83/x
  3. Step 3: Cross multiply
    86,407.67x = 129,494.86 × 44,883.83
  4. Step 4: Simplify right side
    86,407.67x = 5,812,224,522.43
  5. Step 5: Solve for x
    x = 5,812,224,522.43/86,407.67
  6. Step 6: Final answer
    x = 67,265.15

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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.