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Finding the Fourth Proportional to 148,605.68, 205,045.52 and 88,149.84

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Solution

The fourth proportional to 148,605.68, 205,045.52 and 88,149.84 is: 121,628.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,605.68 : 205,045.52 = 88,149.84 : x
  2. Step 2: Convert to fraction form
    148,605.68/205,045.52 = 88,149.84/x
  3. Step 3: Cross multiply
    148,605.68x = 205,045.52 × 88,149.84
  4. Step 4: Simplify right side
    148,605.68x = 18,074,729,780.72
  5. Step 5: Solve for x
    x = 18,074,729,780.72/148,605.68
  6. Step 6: Final answer
    x = 121,628.79

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1.5x scale

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.