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Finding the Fourth Proportional to 354,833.03, 532,257.03 and 127,143.47

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Solution

The fourth proportional to 354,833.03, 532,257.03 and 127,143.47 is: 190,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,833.03 : 532,257.03 = 127,143.47 : x
  2. Step 2: Convert to fraction form
    354,833.03/532,257.03 = 127,143.47/x
  3. Step 3: Cross multiply
    354,833.03x = 532,257.03 × 127,143.47
  4. Step 4: Simplify right side
    354,833.03x = 67,673,005,726.09
  5. Step 5: Solve for x
    x = 67,673,005,726.09/354,833.03
  6. Step 6: Final answer
    x = 190,717.89

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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.