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Finding the Fourth Proportional to 87,573.90, 120,835.62 and 49,330.56

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Solution

The fourth proportional to 87,573.90, 120,835.62 and 49,330.56 is: 68,066.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,573.90 : 120,835.62 = 49,330.56 : x
  2. Step 2: Convert to fraction form
    87,573.90/120,835.62 = 49,330.56/x
  3. Step 3: Cross multiply
    87,573.90x = 120,835.62 × 49,330.56
  4. Step 4: Simplify right side
    87,573.90x = 5,960,888,802.55
  5. Step 5: Solve for x
    x = 5,960,888,802.55/87,573.90
  6. Step 6: Final answer
    x = 68,066.96

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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.