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Finding the Fourth Proportional to 170,948.48, 256,433.66 and 65,767.46

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Solution

The fourth proportional to 170,948.48, 256,433.66 and 65,767.46 is: 98,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,948.48 : 256,433.66 = 65,767.46 : x
  2. Step 2: Convert to fraction form
    170,948.48/256,433.66 = 65,767.46/x
  3. Step 3: Cross multiply
    170,948.48x = 256,433.66 × 65,767.46
  4. Step 4: Simplify right side
    170,948.48x = 16,864,990,476.70
  5. Step 5: Solve for x
    x = 16,864,990,476.70/170,948.48
  6. Step 6: Final answer
    x = 98,655.40

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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.