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Finding the Fourth Proportional to 124,832.70, 187,139.70 and 74,932.65

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Solution

The fourth proportional to 124,832.70, 187,139.70 and 74,932.65 is: 112,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,832.70 : 187,139.70 = 74,932.65 : x
  2. Step 2: Convert to fraction form
    124,832.70/187,139.70 = 74,932.65/x
  3. Step 3: Cross multiply
    124,832.70x = 187,139.70 × 74,932.65
  4. Step 4: Simplify right side
    124,832.70x = 14,022,873,641.21
  5. Step 5: Solve for x
    x = 14,022,873,641.21/124,832.70
  6. Step 6: Final answer
    x = 112,333.34

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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.