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Finding the Fourth Proportional to 71,296.80, 107,103.60 and 59,632.80

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Solution

The fourth proportional to 71,296.80, 107,103.60 and 59,632.80 is: 89,581.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,296.80 : 107,103.60 = 59,632.80 : x
  2. Step 2: Convert to fraction form
    71,296.80/107,103.60 = 59,632.80/x
  3. Step 3: Cross multiply
    71,296.80x = 107,103.60 × 59,632.80
  4. Step 4: Simplify right side
    71,296.80x = 6,386,887,558.08
  5. Step 5: Solve for x
    x = 6,386,887,558.08/71,296.80
  6. Step 6: Final answer
    x = 89,581.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.