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Finding the Fourth Proportional to 146,878.80, 220,350.60 and 47,043.60

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Solution

The fourth proportional to 146,878.80, 220,350.60 and 47,043.60 is: 70,575.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,878.80 : 220,350.60 = 47,043.60 : x
  2. Step 2: Convert to fraction form
    146,878.80/220,350.60 = 47,043.60/x
  3. Step 3: Cross multiply
    146,878.80x = 220,350.60 × 47,043.60
  4. Step 4: Simplify right side
    146,878.80x = 10,366,085,486.16
  5. Step 5: Solve for x
    x = 10,366,085,486.16/146,878.80
  6. Step 6: Final answer
    x = 70,575.78

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1.5x scale

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.