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Finding the Fourth Proportional to 118,001.40, 176,936.50 and 39,072.57

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Solution

The fourth proportional to 118,001.40, 176,936.50 and 39,072.57 is: 58,587.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,001.40 : 176,936.50 = 39,072.57 : x
  2. Step 2: Convert to fraction form
    118,001.40/176,936.50 = 39,072.57/x
  3. Step 3: Cross multiply
    118,001.40x = 176,936.50 × 39,072.57
  4. Step 4: Simplify right side
    118,001.40x = 6,913,363,781.81
  5. Step 5: Solve for x
    x = 6,913,363,781.81/118,001.40
  6. Step 6: Final answer
    x = 58,587.13

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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.