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Finding the Fourth Proportional to 148,801.86, 205,340.70 and 88,370.93

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Solution

The fourth proportional to 148,801.86, 205,340.70 and 88,370.93 is: 121,948.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,801.86 : 205,340.70 = 88,370.93 : x
  2. Step 2: Convert to fraction form
    148,801.86/205,340.70 = 88,370.93/x
  3. Step 3: Cross multiply
    148,801.86x = 205,340.70 × 88,370.93
  4. Step 4: Simplify right side
    148,801.86x = 18,146,149,470.59
  5. Step 5: Solve for x
    x = 18,146,149,470.59/148,801.86
  6. Step 6: Final answer
    x = 121,948.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.