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Finding the Fourth Proportional to 423,652.53, 635,566.29 and 124,142.88

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Solution

The fourth proportional to 423,652.53, 635,566.29 and 124,142.88 is: 186,239.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,652.53 : 635,566.29 = 124,142.88 : x
  2. Step 2: Convert to fraction form
    423,652.53/635,566.29 = 124,142.88/x
  3. Step 3: Cross multiply
    423,652.53x = 635,566.29 × 124,142.88
  4. Step 4: Simplify right side
    423,652.53x = 78,901,029,671.52
  5. Step 5: Solve for x
    x = 78,901,029,671.52/423,652.53
  6. Step 6: Final answer
    x = 186,239.96

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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.