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Finding the Fourth Proportional to 99,327.25, 148,990.88 and 25,455.25

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Solution

The fourth proportional to 99,327.25, 148,990.88 and 25,455.25 is: 38,182.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,327.25 : 148,990.88 = 25,455.25 : x
  2. Step 2: Convert to fraction form
    99,327.25/148,990.88 = 25,455.25/x
  3. Step 3: Cross multiply
    99,327.25x = 148,990.88 × 25,455.25
  4. Step 4: Simplify right side
    99,327.25x = 3,792,600,098.12
  5. Step 5: Solve for x
    x = 3,792,600,098.12/99,327.25
  6. Step 6: Final answer
    x = 38,182.88

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1.5x scale

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.