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Finding the Fourth Proportional to 90,966.96, 125,525.88 and 67,106.88

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Solution

The fourth proportional to 90,966.96, 125,525.88 and 67,106.88 is: 92,601.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,966.96 : 125,525.88 = 67,106.88 : x
  2. Step 2: Convert to fraction form
    90,966.96/125,525.88 = 67,106.88/x
  3. Step 3: Cross multiply
    90,966.96x = 125,525.88 × 67,106.88
  4. Step 4: Simplify right side
    90,966.96x = 8,423,650,166.05
  5. Step 5: Solve for x
    x = 8,423,650,166.05/90,966.96
  6. Step 6: Final answer
    x = 92,601.21

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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.