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Finding the Fourth Proportional to 110,947.48, 153,083.40 and 65,627.96

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Solution

The fourth proportional to 110,947.48, 153,083.40 and 65,627.96 is: 90,552.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,947.48 : 153,083.40 = 65,627.96 : x
  2. Step 2: Convert to fraction form
    110,947.48/153,083.40 = 65,627.96/x
  3. Step 3: Cross multiply
    110,947.48x = 153,083.40 × 65,627.96
  4. Step 4: Simplify right side
    110,947.48x = 10,046,551,251.86
  5. Step 5: Solve for x
    x = 10,046,551,251.86/110,947.48
  6. Step 6: Final answer
    x = 90,552.32

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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.