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Finding the Fourth Proportional to 150,565.65, 207,770.71 and 86,038.22

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Solution

The fourth proportional to 150,565.65, 207,770.71 and 86,038.22 is: 118,727.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,565.65 : 207,770.71 = 86,038.22 : x
  2. Step 2: Convert to fraction form
    150,565.65/207,770.71 = 86,038.22/x
  3. Step 3: Cross multiply
    150,565.65x = 207,770.71 × 86,038.22
  4. Step 4: Simplify right side
    150,565.65x = 17,876,222,056.54
  5. Step 5: Solve for x
    x = 17,876,222,056.54/150,565.65
  6. Step 6: Final answer
    x = 118,727.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.