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Finding the Fourth Proportional to 295,976.40, 408,368.68 and 168,649.28

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Solution

The fourth proportional to 295,976.40, 408,368.68 and 168,649.28 is: 232,691.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,976.40 : 408,368.68 = 168,649.28 : x
  2. Step 2: Convert to fraction form
    295,976.40/408,368.68 = 168,649.28/x
  3. Step 3: Cross multiply
    295,976.40x = 408,368.68 × 168,649.28
  4. Step 4: Simplify right side
    295,976.40x = 68,871,083,856.55
  5. Step 5: Solve for x
    x = 68,871,083,856.55/295,976.40
  6. Step 6: Final answer
    x = 232,691.13

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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.