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Finding the Fourth Proportional to 103,882.88, 143,355.20 and 59,168.64

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Solution

The fourth proportional to 103,882.88, 143,355.20 and 59,168.64 is: 81,650.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,882.88 : 143,355.20 = 59,168.64 : x
  2. Step 2: Convert to fraction form
    103,882.88/143,355.20 = 59,168.64/x
  3. Step 3: Cross multiply
    103,882.88x = 143,355.20 × 59,168.64
  4. Step 4: Simplify right side
    103,882.88x = 8,482,132,220.93
  5. Step 5: Solve for x
    x = 8,482,132,220.93/103,882.88
  6. Step 6: Final answer
    x = 81,650.92

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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.