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Finding the Fourth Proportional to 116,726.80, 175,090.20 and 102,948.70

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Solution

The fourth proportional to 116,726.80, 175,090.20 and 102,948.70 is: 154,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,726.80 : 175,090.20 = 102,948.70 : x
  2. Step 2: Convert to fraction form
    116,726.80/175,090.20 = 102,948.70/x
  3. Step 3: Cross multiply
    116,726.80x = 175,090.20 × 102,948.70
  4. Step 4: Simplify right side
    116,726.80x = 18,025,308,472.74
  5. Step 5: Solve for x
    x = 18,025,308,472.74/116,726.80
  6. Step 6: Final answer
    x = 154,423.05

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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.