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Finding the Fourth Proportional to 106,677.80, 147,209.92 and 58,921.91

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Solution

The fourth proportional to 106,677.80, 147,209.92 and 58,921.91 is: 81,309.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,677.80 : 147,209.92 = 58,921.91 : x
  2. Step 2: Convert to fraction form
    106,677.80/147,209.92 = 58,921.91/x
  3. Step 3: Cross multiply
    106,677.80x = 147,209.92 × 58,921.91
  4. Step 4: Simplify right side
    106,677.80x = 8,673,888,773.99
  5. Step 5: Solve for x
    x = 8,673,888,773.99/106,677.80
  6. Step 6: Final answer
    x = 81,309.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.