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Finding the Fourth Proportional to 132,615.90, 198,803.90 and 48,356.36

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Solution

The fourth proportional to 132,615.90, 198,803.90 and 48,356.36 is: 72,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,615.90 : 198,803.90 = 48,356.36 : x
  2. Step 2: Convert to fraction form
    132,615.90/198,803.90 = 48,356.36/x
  3. Step 3: Cross multiply
    132,615.90x = 198,803.90 × 48,356.36
  4. Step 4: Simplify right side
    132,615.90x = 9,613,432,084.68
  5. Step 5: Solve for x
    x = 9,613,432,084.68/132,615.90
  6. Step 6: Final answer
    x = 72,490.80

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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.