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Finding the Fourth Proportional to 99,813.59, 149,700.14 and 36,612.20

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Solution

The fourth proportional to 99,813.59, 149,700.14 and 36,612.20 is: 54,910.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,813.59 : 149,700.14 = 36,612.20 : x
  2. Step 2: Convert to fraction form
    99,813.59/149,700.14 = 36,612.20/x
  3. Step 3: Cross multiply
    99,813.59x = 149,700.14 × 36,612.20
  4. Step 4: Simplify right side
    99,813.59x = 5,480,851,465.71
  5. Step 5: Solve for x
    x = 5,480,851,465.71/99,813.59
  6. Step 6: Final answer
    x = 54,910.87

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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.