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Finding the Fourth Proportional to 148,045.20, 222,067.80 and 49,549.20

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Solution

The fourth proportional to 148,045.20, 222,067.80 and 49,549.20 is: 74,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,045.20 : 222,067.80 = 49,549.20 : x
  2. Step 2: Convert to fraction form
    148,045.20/222,067.80 = 49,549.20/x
  3. Step 3: Cross multiply
    148,045.20x = 222,067.80 × 49,549.20
  4. Step 4: Simplify right side
    148,045.20x = 11,003,281,835.76
  5. Step 5: Solve for x
    x = 11,003,281,835.76/148,045.20
  6. Step 6: Final answer
    x = 74,323.80

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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.