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Finding the Fourth Proportional to 69,333.60, 104,232.42 and 54,718.68

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Solution

The fourth proportional to 69,333.60, 104,232.42 and 54,718.68 is: 82,261.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,333.60 : 104,232.42 = 54,718.68 : x
  2. Step 2: Convert to fraction form
    69,333.60/104,232.42 = 54,718.68/x
  3. Step 3: Cross multiply
    69,333.60x = 104,232.42 × 54,718.68
  4. Step 4: Simplify right side
    69,333.60x = 5,703,460,435.61
  5. Step 5: Solve for x
    x = 5,703,460,435.61/69,333.60
  6. Step 6: Final answer
    x = 82,261.13

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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.