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Finding the Fourth Proportional to 326,562.90, 450,723.12 and 188,747.70

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Solution

The fourth proportional to 326,562.90, 450,723.12 and 188,747.70 is: 260,510.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,562.90 : 450,723.12 = 188,747.70 : x
  2. Step 2: Convert to fraction form
    326,562.90/450,723.12 = 188,747.70/x
  3. Step 3: Cross multiply
    326,562.90x = 450,723.12 × 188,747.70
  4. Step 4: Simplify right side
    326,562.90x = 85,072,952,236.82
  5. Step 5: Solve for x
    x = 85,072,952,236.82/326,562.90
  6. Step 6: Final answer
    x = 260,510.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.