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Finding the Fourth Proportional to 60,269.71, 90,421.49 and 22,318.41

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Solution

The fourth proportional to 60,269.71, 90,421.49 and 22,318.41 is: 33,483.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,269.71 : 90,421.49 = 22,318.41 : x
  2. Step 2: Convert to fraction form
    60,269.71/90,421.49 = 22,318.41/x
  3. Step 3: Cross multiply
    60,269.71x = 90,421.49 × 22,318.41
  4. Step 4: Simplify right side
    60,269.71x = 2,018,063,886.63
  5. Step 5: Solve for x
    x = 2,018,063,886.63/60,269.71
  6. Step 6: Final answer
    x = 33,483.88

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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.