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Finding the Fourth Proportional to 86,324.58, 129,606.12 and 59,607.87

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Solution

The fourth proportional to 86,324.58, 129,606.12 and 59,607.87 is: 89,494.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,324.58 : 129,606.12 = 59,607.87 : x
  2. Step 2: Convert to fraction form
    86,324.58/129,606.12 = 59,607.87/x
  3. Step 3: Cross multiply
    86,324.58x = 129,606.12 × 59,607.87
  4. Step 4: Simplify right side
    86,324.58x = 7,725,544,752.16
  5. Step 5: Solve for x
    x = 7,725,544,752.16/86,324.58
  6. Step 6: Final answer
    x = 89,494.15

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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.