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Finding the Fourth Proportional to 486,869.81, 730,236.66 and 167,016.45

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Solution

The fourth proportional to 486,869.81, 730,236.66 and 167,016.45 is: 250,501.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,869.81 : 730,236.66 = 167,016.45 : x
  2. Step 2: Convert to fraction form
    486,869.81/730,236.66 = 167,016.45/x
  3. Step 3: Cross multiply
    486,869.81x = 730,236.66 × 167,016.45
  4. Step 4: Simplify right side
    486,869.81x = 121,961,534,613.06
  5. Step 5: Solve for x
    x = 121,961,534,613.06/486,869.81
  6. Step 6: Final answer
    x = 250,501.33

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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.