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Finding the Fourth Proportional to 148,479.40, 222,719.10 and 43,301.80

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Solution

The fourth proportional to 148,479.40, 222,719.10 and 43,301.80 is: 64,952.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,479.40 : 222,719.10 = 43,301.80 : x
  2. Step 2: Convert to fraction form
    148,479.40/222,719.10 = 43,301.80/x
  3. Step 3: Cross multiply
    148,479.40x = 222,719.10 × 43,301.80
  4. Step 4: Simplify right side
    148,479.40x = 9,644,137,924.38
  5. Step 5: Solve for x
    x = 9,644,137,924.38/148,479.40
  6. Step 6: Final answer
    x = 64,952.70

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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.