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Finding the Fourth Proportional to 99,790.80, 149,686.20 and 95,854.20

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Solution

The fourth proportional to 99,790.80, 149,686.20 and 95,854.20 is: 143,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,790.80 : 149,686.20 = 95,854.20 : x
  2. Step 2: Convert to fraction form
    99,790.80/149,686.20 = 95,854.20/x
  3. Step 3: Cross multiply
    99,790.80x = 149,686.20 × 95,854.20
  4. Step 4: Simplify right side
    99,790.80x = 14,348,050,952.04
  5. Step 5: Solve for x
    x = 14,348,050,952.04/99,790.80
  6. Step 6: Final answer
    x = 143,781.30

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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.