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Finding the Fourth Proportional to 353,149.20, 530,501.40 and 248,173.20

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Solution

The fourth proportional to 353,149.20, 530,501.40 and 248,173.20 is: 372,806.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,149.20 : 530,501.40 = 248,173.20 : x
  2. Step 2: Convert to fraction form
    353,149.20/530,501.40 = 248,173.20/x
  3. Step 3: Cross multiply
    353,149.20x = 530,501.40 × 248,173.20
  4. Step 4: Simplify right side
    353,149.20x = 131,656,230,042.48
  5. Step 5: Solve for x
    x = 131,656,230,042.48/353,149.20
  6. Step 6: Final answer
    x = 372,806.25

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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.