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Finding the Fourth Proportional to 392,126.59, 588,216.55 and 125,870.96

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Solution

The fourth proportional to 392,126.59, 588,216.55 and 125,870.96 is: 188,815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,126.59 : 588,216.55 = 125,870.96 : x
  2. Step 2: Convert to fraction form
    392,126.59/588,216.55 = 125,870.96/x
  3. Step 3: Cross multiply
    392,126.59x = 588,216.55 × 125,870.96
  4. Step 4: Simplify right side
    392,126.59x = 74,039,382,697.24
  5. Step 5: Solve for x
    x = 74,039,382,697.24/392,126.59
  6. Step 6: Final answer
    x = 188,815.00

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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.