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Finding the Fourth Proportional to 118,675.53, 178,016.67 and 38,713.14

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Solution

The fourth proportional to 118,675.53, 178,016.67 and 38,713.14 is: 58,070.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,675.53 : 178,016.67 = 38,713.14 : x
  2. Step 2: Convert to fraction form
    118,675.53/178,016.67 = 38,713.14/x
  3. Step 3: Cross multiply
    118,675.53x = 178,016.67 × 38,713.14
  4. Step 4: Simplify right side
    118,675.53x = 6,891,584,268.04
  5. Step 5: Solve for x
    x = 6,891,584,268.04/118,675.53
  6. Step 6: Final answer
    x = 58,070.81

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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.