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Finding the Fourth Proportional to 181,867.80, 272,801.70 and 125,880.60

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Solution

The fourth proportional to 181,867.80, 272,801.70 and 125,880.60 is: 188,820.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,867.80 : 272,801.70 = 125,880.60 : x
  2. Step 2: Convert to fraction form
    181,867.80/272,801.70 = 125,880.60/x
  3. Step 3: Cross multiply
    181,867.80x = 272,801.70 × 125,880.60
  4. Step 4: Simplify right side
    181,867.80x = 34,340,441,677.02
  5. Step 5: Solve for x
    x = 34,340,441,677.02/181,867.80
  6. Step 6: Final answer
    x = 188,820.90

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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.