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Finding the Fourth Proportional to 95,689, 142,522.70 and 90,692.92

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Solution

The fourth proportional to 95,689, 142,522.70 and 90,692.92 is: 135,081.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,689 : 142,522.70 = 90,692.92 : x
  2. Step 2: Convert to fraction form
    95,689/142,522.70 = 90,692.92/x
  3. Step 3: Cross multiply
    95,689x = 142,522.70 × 90,692.92
  4. Step 4: Simplify right side
    95,689x = 12,925,799,829.28
  5. Step 5: Solve for x
    x = 12,925,799,829.28/95,689
  6. Step 6: Final answer
    x = 135,081.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.