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Finding the Fourth Proportional to 353,608.65, 530,462.48 and 113,641.92

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Solution

The fourth proportional to 353,608.65, 530,462.48 and 113,641.92 is: 170,478.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,608.65 : 530,462.48 = 113,641.92 : x
  2. Step 2: Convert to fraction form
    353,608.65/530,462.48 = 113,641.92/x
  3. Step 3: Cross multiply
    353,608.65x = 530,462.48 × 113,641.92
  4. Step 4: Simplify right side
    353,608.65x = 60,282,774,146.95
  5. Step 5: Solve for x
    x = 60,282,774,146.95/353,608.65
  6. Step 6: Final answer
    x = 170,478.79

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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.