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Finding the Fourth Proportional to 86,355.01, 129,477.18 and 59,626.13

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Solution

The fourth proportional to 86,355.01, 129,477.18 and 59,626.13 is: 89,400.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,355.01 : 129,477.18 = 59,626.13 : x
  2. Step 2: Convert to fraction form
    86,355.01/129,477.18 = 59,626.13/x
  3. Step 3: Cross multiply
    86,355.01x = 129,477.18 × 59,626.13
  4. Step 4: Simplify right side
    86,355.01x = 7,720,222,742.93
  5. Step 5: Solve for x
    x = 7,720,222,742.93/86,355.01
  6. Step 6: Final answer
    x = 89,400.98

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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.