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Finding the Fourth Proportional to 111,350.70, 153,664.11 and 60,363.72

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Solution

The fourth proportional to 111,350.70, 153,664.11 and 60,363.72 is: 83,302.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,350.70 : 153,664.11 = 60,363.72 : x
  2. Step 2: Convert to fraction form
    111,350.70/153,664.11 = 60,363.72/x
  3. Step 3: Cross multiply
    111,350.70x = 153,664.11 × 60,363.72
  4. Step 4: Simplify right side
    111,350.70x = 9,275,737,310.09
  5. Step 5: Solve for x
    x = 9,275,737,310.09/111,350.70
  6. Step 6: Final answer
    x = 83,302.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.