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Finding the Fourth Proportional to 118,875.38, 178,270.56 and 55,684.70

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Solution

The fourth proportional to 118,875.38, 178,270.56 and 55,684.70 is: 83,507.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,875.38 : 178,270.56 = 55,684.70 : x
  2. Step 2: Convert to fraction form
    118,875.38/178,270.56 = 55,684.70/x
  3. Step 3: Cross multiply
    118,875.38x = 178,270.56 × 55,684.70
  4. Step 4: Simplify right side
    118,875.38x = 9,926,942,652.43
  5. Step 5: Solve for x
    x = 9,926,942,652.43/118,875.38
  6. Step 6: Final answer
    x = 83,507.14

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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.