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Finding the Fourth Proportional to 138,761.93, 208,225.93 and 59,876.16

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Solution

The fourth proportional to 138,761.93, 208,225.93 and 59,876.16 is: 89,850.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,761.93 : 208,225.93 = 59,876.16 : x
  2. Step 2: Convert to fraction form
    138,761.93/208,225.93 = 59,876.16/x
  3. Step 3: Cross multiply
    138,761.93x = 208,225.93 × 59,876.16
  4. Step 4: Simplify right side
    138,761.93x = 12,467,769,100.83
  5. Step 5: Solve for x
    x = 12,467,769,100.83/138,761.93
  6. Step 6: Final answer
    x = 89,850.07

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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.