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Finding the Fourth Proportional to 118,575.84, 177,710.88 and 88,760.16

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Solution

The fourth proportional to 118,575.84, 177,710.88 and 88,760.16 is: 133,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,575.84 : 177,710.88 = 88,760.16 : x
  2. Step 2: Convert to fraction form
    118,575.84/177,710.88 = 88,760.16/x
  3. Step 3: Cross multiply
    118,575.84x = 177,710.88 × 88,760.16
  4. Step 4: Simplify right side
    118,575.84x = 15,773,646,142.54
  5. Step 5: Solve for x
    x = 15,773,646,142.54/118,575.84
  6. Step 6: Final answer
    x = 133,025.80

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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.