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Finding the Fourth Proportional to 657,306.41, 985,959.61 and 158,670.41

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Solution

The fourth proportional to 657,306.41, 985,959.61 and 158,670.41 is: 238,005.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,306.41 : 985,959.61 = 158,670.41 : x
  2. Step 2: Convert to fraction form
    657,306.41/985,959.61 = 158,670.41/x
  3. Step 3: Cross multiply
    657,306.41x = 985,959.61 × 158,670.41
  4. Step 4: Simplify right side
    657,306.41x = 156,442,610,235.67
  5. Step 5: Solve for x
    x = 156,442,610,235.67/657,306.41
  6. Step 6: Final answer
    x = 238,005.61

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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.