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Finding the Fourth Proportional to 60,085.41, 90,132.90 and 35,128.02

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Solution

The fourth proportional to 60,085.41, 90,132.90 and 35,128.02 is: 52,694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,085.41 : 90,132.90 = 35,128.02 : x
  2. Step 2: Convert to fraction form
    60,085.41/90,132.90 = 35,128.02/x
  3. Step 3: Cross multiply
    60,085.41x = 90,132.90 × 35,128.02
  4. Step 4: Simplify right side
    60,085.41x = 3,166,190,313.86
  5. Step 5: Solve for x
    x = 3,166,190,313.86/60,085.41
  6. Step 6: Final answer
    x = 52,694.83

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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.