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Finding the Fourth Proportional to 125,116.80, 187,666.56 and 54,994.56

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Solution

The fourth proportional to 125,116.80, 187,666.56 and 54,994.56 is: 82,488.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,116.80 : 187,666.56 = 54,994.56 : x
  2. Step 2: Convert to fraction form
    125,116.80/187,666.56 = 54,994.56/x
  3. Step 3: Cross multiply
    125,116.80x = 187,666.56 × 54,994.56
  4. Step 4: Simplify right side
    125,116.80x = 10,320,639,893.91
  5. Step 5: Solve for x
    x = 10,320,639,893.91/125,116.80
  6. Step 6: Final answer
    x = 82,488.04

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1.5x scale

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.