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Finding the Fourth Proportional to 87,580.17, 120,866.76 and 49,854.42

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Solution

The fourth proportional to 87,580.17, 120,866.76 and 49,854.42 is: 68,802.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,580.17 : 120,866.76 = 49,854.42 : x
  2. Step 2: Convert to fraction form
    87,580.17/120,866.76 = 49,854.42/x
  3. Step 3: Cross multiply
    87,580.17x = 120,866.76 × 49,854.42
  4. Step 4: Simplify right side
    87,580.17x = 6,025,742,217.08
  5. Step 5: Solve for x
    x = 6,025,742,217.08/87,580.17
  6. Step 6: Final answer
    x = 68,802.59

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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.