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Finding the Fourth Proportional to 60,490.40, 90,627.60 and 29,256.80

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Solution

The fourth proportional to 60,490.40, 90,627.60 and 29,256.80 is: 43,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,490.40 : 90,627.60 = 29,256.80 : x
  2. Step 2: Convert to fraction form
    60,490.40/90,627.60 = 29,256.80/x
  3. Step 3: Cross multiply
    60,490.40x = 90,627.60 × 29,256.80
  4. Step 4: Simplify right side
    60,490.40x = 2,651,473,567.68
  5. Step 5: Solve for x
    x = 2,651,473,567.68/60,490.40
  6. Step 6: Final answer
    x = 43,832.96

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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.