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Finding the Fourth Proportional to 77,141.92, 106,454.08 and 43,150.88

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Solution

The fourth proportional to 77,141.92, 106,454.08 and 43,150.88 is: 59,547.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,141.92 : 106,454.08 = 43,150.88 : x
  2. Step 2: Convert to fraction form
    77,141.92/106,454.08 = 43,150.88/x
  3. Step 3: Cross multiply
    77,141.92x = 106,454.08 × 43,150.88
  4. Step 4: Simplify right side
    77,141.92x = 4,593,587,231.59
  5. Step 5: Solve for x
    x = 4,593,587,231.59/77,141.92
  6. Step 6: Final answer
    x = 59,547.22

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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.