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Finding the Fourth Proportional to 395,044.68, 592,640.76 and 158,405.88

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Solution

The fourth proportional to 395,044.68, 592,640.76 and 158,405.88 is: 237,638.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,044.68 : 592,640.76 = 158,405.88 : x
  2. Step 2: Convert to fraction form
    395,044.68/592,640.76 = 158,405.88/x
  3. Step 3: Cross multiply
    395,044.68x = 592,640.76 × 158,405.88
  4. Step 4: Simplify right side
    395,044.68x = 93,877,781,111.67
  5. Step 5: Solve for x
    x = 93,877,781,111.67/395,044.68
  6. Step 6: Final answer
    x = 237,638.39

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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.