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Finding the Fourth Proportional to 439,714.32, 659,496.96 and 124,097.28

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Solution

The fourth proportional to 439,714.32, 659,496.96 and 124,097.28 is: 186,124.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,714.32 : 659,496.96 = 124,097.28 : x
  2. Step 2: Convert to fraction form
    439,714.32/659,496.96 = 124,097.28/x
  3. Step 3: Cross multiply
    439,714.32x = 659,496.96 × 124,097.28
  4. Step 4: Simplify right side
    439,714.32x = 81,841,778,904.27
  5. Step 5: Solve for x
    x = 81,841,778,904.27/439,714.32
  6. Step 6: Final answer
    x = 186,124.89

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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.