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Finding the Fourth Proportional to 94,691.59, 130,847.58 and 90,078.84

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Solution

The fourth proportional to 94,691.59, 130,847.58 and 90,078.84 is: 124,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,691.59 : 130,847.58 = 90,078.84 : x
  2. Step 2: Convert to fraction form
    94,691.59/130,847.58 = 90,078.84/x
  3. Step 3: Cross multiply
    94,691.59x = 130,847.58 × 90,078.84
  4. Step 4: Simplify right side
    94,691.59x = 11,786,598,223.21
  5. Step 5: Solve for x
    x = 11,786,598,223.21/94,691.59
  6. Step 6: Final answer
    x = 124,473.55

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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.