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Finding the Fourth Proportional to 354,391.09, 531,588.56 and 88,151.61

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Solution

The fourth proportional to 354,391.09, 531,588.56 and 88,151.61 is: 132,227.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,391.09 : 531,588.56 = 88,151.61 : x
  2. Step 2: Convert to fraction form
    354,391.09/531,588.56 = 88,151.61/x
  3. Step 3: Cross multiply
    354,391.09x = 531,588.56 × 88,151.61
  4. Step 4: Simplify right side
    354,391.09x = 46,860,386,980.82
  5. Step 5: Solve for x
    x = 46,860,386,980.82/354,391.09
  6. Step 6: Final answer
    x = 132,227.89

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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.