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Finding the Fourth Proportional to 439,715.32, 659,498.46 and 124,098.28

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Solution

The fourth proportional to 439,715.32, 659,498.46 and 124,098.28 is: 186,126.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,715.32 : 659,498.46 = 124,098.28 : x
  2. Step 2: Convert to fraction form
    439,715.32/659,498.46 = 124,098.28/x
  3. Step 3: Cross multiply
    439,715.32x = 659,498.46 × 124,098.28
  4. Step 4: Simplify right side
    439,715.32x = 81,842,624,548.65
  5. Step 5: Solve for x
    x = 81,842,624,548.65/439,715.32
  6. Step 6: Final answer
    x = 186,126.39

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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.