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Finding the Fourth Proportional to 87,645.60, 120,950.64 and 49,926.24

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Solution

The fourth proportional to 87,645.60, 120,950.64 and 49,926.24 is: 68,898.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,645.60 : 120,950.64 = 49,926.24 : x
  2. Step 2: Convert to fraction form
    87,645.60/120,950.64 = 49,926.24/x
  3. Step 3: Cross multiply
    87,645.60x = 120,950.64 × 49,926.24
  4. Step 4: Simplify right side
    87,645.60x = 6,038,610,680.79
  5. Step 5: Solve for x
    x = 6,038,610,680.79/87,645.60
  6. Step 6: Final answer
    x = 68,898.05

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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.