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Finding the Fourth Proportional to 99,812.80, 149,719.20 and 95,876.20

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Solution

The fourth proportional to 99,812.80, 149,719.20 and 95,876.20 is: 143,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,812.80 : 149,719.20 = 95,876.20 : x
  2. Step 2: Convert to fraction form
    99,812.80/149,719.20 = 95,876.20/x
  3. Step 3: Cross multiply
    99,812.80x = 149,719.20 × 95,876.20
  4. Step 4: Simplify right side
    99,812.80x = 14,354,507,963.04
  5. Step 5: Solve for x
    x = 14,354,507,963.04/99,812.80
  6. Step 6: Final answer
    x = 143,814.30

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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.