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Finding the Fourth Proportional to 177,988.58, 266,836.52 and 83,171.87

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Solution

The fourth proportional to 177,988.58, 266,836.52 and 83,171.87 is: 124,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,988.58 : 266,836.52 = 83,171.87 : x
  2. Step 2: Convert to fraction form
    177,988.58/266,836.52 = 83,171.87/x
  3. Step 3: Cross multiply
    177,988.58x = 266,836.52 × 83,171.87
  4. Step 4: Simplify right side
    177,988.58x = 22,193,290,602.65
  5. Step 5: Solve for x
    x = 22,193,290,602.65/177,988.58
  6. Step 6: Final answer
    x = 124,689.41

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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.