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Finding the Fourth Proportional to 153,847.80, 230,771.70 and 127,582.20

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Solution

The fourth proportional to 153,847.80, 230,771.70 and 127,582.20 is: 191,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,847.80 : 230,771.70 = 127,582.20 : x
  2. Step 2: Convert to fraction form
    153,847.80/230,771.70 = 127,582.20/x
  3. Step 3: Cross multiply
    153,847.80x = 230,771.70 × 127,582.20
  4. Step 4: Simplify right side
    153,847.80x = 29,442,361,183.74
  5. Step 5: Solve for x
    x = 29,442,361,183.74/153,847.80
  6. Step 6: Final answer
    x = 191,373.30

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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.