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Finding the Fourth Proportional to 482,425.04, 723,672.20 and 127,435.60

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Solution

The fourth proportional to 482,425.04, 723,672.20 and 127,435.60 is: 191,162.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,425.04 : 723,672.20 = 127,435.60 : x
  2. Step 2: Convert to fraction form
    482,425.04/723,672.20 = 127,435.60/x
  3. Step 3: Cross multiply
    482,425.04x = 723,672.20 × 127,435.60
  4. Step 4: Simplify right side
    482,425.04x = 92,221,601,010.32
  5. Step 5: Solve for x
    x = 92,221,601,010.32/482,425.04
  6. Step 6: Final answer
    x = 191,162.55

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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.