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Finding the Fourth Proportional to 348,060.80, 522,139.80 and 148,379.60

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Solution

The fourth proportional to 348,060.80, 522,139.80 and 148,379.60 is: 222,590.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,060.80 : 522,139.80 = 148,379.60 : x
  2. Step 2: Convert to fraction form
    348,060.80/522,139.80 = 148,379.60/x
  3. Step 3: Cross multiply
    348,060.80x = 522,139.80 × 148,379.60
  4. Step 4: Simplify right side
    348,060.80x = 77,474,894,668.08
  5. Step 5: Solve for x
    x = 77,474,894,668.08/348,060.80
  6. Step 6: Final answer
    x = 222,590.12

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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.