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Finding the Fourth Proportional to 103,797.91, 143,251.69 and 63,538.27

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Solution

The fourth proportional to 103,797.91, 143,251.69 and 63,538.27 is: 87,689.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,797.91 : 143,251.69 = 63,538.27 : x
  2. Step 2: Convert to fraction form
    103,797.91/143,251.69 = 63,538.27/x
  3. Step 3: Cross multiply
    103,797.91x = 143,251.69 × 63,538.27
  4. Step 4: Simplify right side
    103,797.91x = 9,101,964,557.18
  5. Step 5: Solve for x
    x = 9,101,964,557.18/103,797.91
  6. Step 6: Final answer
    x = 87,689.29

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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.