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Finding the Fourth Proportional to 60,317.61, 90,445.50 and 31,869.84

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Solution

The fourth proportional to 60,317.61, 90,445.50 and 31,869.84 is: 47,788.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,317.61 : 90,445.50 = 31,869.84 : x
  2. Step 2: Convert to fraction form
    60,317.61/90,445.50 = 31,869.84/x
  3. Step 3: Cross multiply
    60,317.61x = 90,445.50 × 31,869.84
  4. Step 4: Simplify right side
    60,317.61x = 2,882,483,613.72
  5. Step 5: Solve for x
    x = 2,882,483,613.72/60,317.61
  6. Step 6: Final answer
    x = 47,788.43

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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.