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Finding the Fourth Proportional to 266,425.44, 399,718.08 and 112,624.32

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Solution

The fourth proportional to 266,425.44, 399,718.08 and 112,624.32 is: 168,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,425.44 : 399,718.08 = 112,624.32 : x
  2. Step 2: Convert to fraction form
    266,425.44/399,718.08 = 112,624.32/x
  3. Step 3: Cross multiply
    266,425.44x = 399,718.08 × 112,624.32
  4. Step 4: Simplify right side
    266,425.44x = 45,017,976,951.71
  5. Step 5: Solve for x
    x = 45,017,976,951.71/266,425.44
  6. Step 6: Final answer
    x = 168,970.26

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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.