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Finding the Fourth Proportional to 110,356.75, 152,281.78 and 61,947.60

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Solution

The fourth proportional to 110,356.75, 152,281.78 and 61,947.60 is: 85,481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,356.75 : 152,281.78 = 61,947.60 : x
  2. Step 2: Convert to fraction form
    110,356.75/152,281.78 = 61,947.60/x
  3. Step 3: Cross multiply
    110,356.75x = 152,281.78 × 61,947.60
  4. Step 4: Simplify right side
    110,356.75x = 9,433,490,794.73
  5. Step 5: Solve for x
    x = 9,433,490,794.73/110,356.75
  6. Step 6: Final answer
    x = 85,481.77

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1.5x scale

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.