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Finding the Fourth Proportional to 118,763.48, 177,253.25 and 102,681.88

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Solution

The fourth proportional to 118,763.48, 177,253.25 and 102,681.88 is: 153,251.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,763.48 : 177,253.25 = 102,681.88 : x
  2. Step 2: Convert to fraction form
    118,763.48/177,253.25 = 102,681.88/x
  3. Step 3: Cross multiply
    118,763.48x = 177,253.25 × 102,681.88
  4. Step 4: Simplify right side
    118,763.48x = 18,200,695,989.57
  5. Step 5: Solve for x
    x = 18,200,695,989.57/118,763.48
  6. Step 6: Final answer
    x = 153,251.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.