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Finding the Fourth Proportional to 104,023.71, 143,557.88 and 63,739.71

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Solution

The fourth proportional to 104,023.71, 143,557.88 and 63,739.71 is: 87,963.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,023.71 : 143,557.88 = 63,739.71 : x
  2. Step 2: Convert to fraction form
    104,023.71/143,557.88 = 63,739.71/x
  3. Step 3: Cross multiply
    104,023.71x = 143,557.88 × 63,739.71
  4. Step 4: Simplify right side
    104,023.71x = 9,150,337,320.72
  5. Step 5: Solve for x
    x = 9,150,337,320.72/104,023.71
  6. Step 6: Final answer
    x = 87,963.96

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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.