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Finding the Fourth Proportional to 99,496.40, 148,803.96 and 88,480.40

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Solution

The fourth proportional to 99,496.40, 148,803.96 and 88,480.40 is: 132,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,496.40 : 148,803.96 = 88,480.40 : x
  2. Step 2: Convert to fraction form
    99,496.40/148,803.96 = 88,480.40/x
  3. Step 3: Cross multiply
    99,496.40x = 148,803.96 × 88,480.40
  4. Step 4: Simplify right side
    99,496.40x = 13,166,233,902.38
  5. Step 5: Solve for x
    x = 13,166,233,902.38/99,496.40
  6. Step 6: Final answer
    x = 132,328.75

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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.