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Finding the Fourth Proportional to 90,595.59, 125,023.56 and 49,759.44

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Solution

The fourth proportional to 90,595.59, 125,023.56 and 49,759.44 is: 68,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,595.59 : 125,023.56 = 49,759.44 : x
  2. Step 2: Convert to fraction form
    90,595.59/125,023.56 = 49,759.44/x
  3. Step 3: Cross multiply
    90,595.59x = 125,023.56 × 49,759.44
  4. Step 4: Simplify right side
    90,595.59x = 6,221,102,332.41
  5. Step 5: Solve for x
    x = 6,221,102,332.41/90,595.59
  6. Step 6: Final answer
    x = 68,668.93

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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.