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Finding the Fourth Proportional to 288,968.33, 398,856.44 and 168,132.96

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Solution

The fourth proportional to 288,968.33, 398,856.44 and 168,132.96 is: 232,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,968.33 : 398,856.44 = 168,132.96 : x
  2. Step 2: Convert to fraction form
    288,968.33/398,856.44 = 168,132.96/x
  3. Step 3: Cross multiply
    288,968.33x = 398,856.44 × 168,132.96
  4. Step 4: Simplify right side
    288,968.33x = 67,060,914,292.59
  5. Step 5: Solve for x
    x = 67,060,914,292.59/288,968.33
  6. Step 6: Final answer
    x = 232,070.12

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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.