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Finding the Fourth Proportional to 465,562.08, 698,290.27 and 128,650.48

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Solution

The fourth proportional to 465,562.08, 698,290.27 and 128,650.48 is: 192,961.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,562.08 : 698,290.27 = 128,650.48 : x
  2. Step 2: Convert to fraction form
    465,562.08/698,290.27 = 128,650.48/x
  3. Step 3: Cross multiply
    465,562.08x = 698,290.27 × 128,650.48
  4. Step 4: Simplify right side
    465,562.08x = 89,835,376,347.48
  5. Step 5: Solve for x
    x = 89,835,376,347.48/465,562.08
  6. Step 6: Final answer
    x = 192,961.11

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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.