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Finding the Fourth Proportional to 181,616.80, 272,425.20 and 125,629.60

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Solution

The fourth proportional to 181,616.80, 272,425.20 and 125,629.60 is: 188,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,616.80 : 272,425.20 = 125,629.60 : x
  2. Step 2: Convert to fraction form
    181,616.80/272,425.20 = 125,629.60/x
  3. Step 3: Cross multiply
    181,616.80x = 272,425.20 × 125,629.60
  4. Step 4: Simplify right side
    181,616.80x = 34,224,668,905.92
  5. Step 5: Solve for x
    x = 34,224,668,905.92/181,616.80
  6. Step 6: Final answer
    x = 188,444.40

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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.