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Finding the Fourth Proportional to 356,625.18, 535,111.92 and 156,920.49

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Solution

The fourth proportional to 356,625.18, 535,111.92 and 156,920.49 is: 235,457.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,625.18 : 535,111.92 = 156,920.49 : x
  2. Step 2: Convert to fraction form
    356,625.18/535,111.92 = 156,920.49/x
  3. Step 3: Cross multiply
    356,625.18x = 535,111.92 × 156,920.49
  4. Step 4: Simplify right side
    356,625.18x = 83,970,024,691.24
  5. Step 5: Solve for x
    x = 83,970,024,691.24/356,625.18
  6. Step 6: Final answer
    x = 235,457.36

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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.