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Finding the Fourth Proportional to 60,629.66, 90,470.32 and 54,325.45

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Solution

The fourth proportional to 60,629.66, 90,470.32 and 54,325.45 is: 81,063.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,629.66 : 90,470.32 = 54,325.45 : x
  2. Step 2: Convert to fraction form
    60,629.66/90,470.32 = 54,325.45/x
  3. Step 3: Cross multiply
    60,629.66x = 90,470.32 × 54,325.45
  4. Step 4: Simplify right side
    60,629.66x = 4,914,841,003.91
  5. Step 5: Solve for x
    x = 4,914,841,003.91/60,629.66
  6. Step 6: Final answer
    x = 81,063.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.