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Finding the Fourth Proportional to 148,962.60, 223,443.90 and 138,027.60

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Solution

The fourth proportional to 148,962.60, 223,443.90 and 138,027.60 is: 207,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,962.60 : 223,443.90 = 138,027.60 : x
  2. Step 2: Convert to fraction form
    148,962.60/223,443.90 = 138,027.60/x
  3. Step 3: Cross multiply
    148,962.60x = 223,443.90 × 138,027.60
  4. Step 4: Simplify right side
    148,962.60x = 30,841,425,251.64
  5. Step 5: Solve for x
    x = 30,841,425,251.64/148,962.60
  6. Step 6: Final answer
    x = 207,041.40

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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.