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Finding the Fourth Proportional to 86,403.96, 119,239.38 and 48,167.46

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Solution

The fourth proportional to 86,403.96, 119,239.38 and 48,167.46 is: 66,472.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,403.96 : 119,239.38 = 48,167.46 : x
  2. Step 2: Convert to fraction form
    86,403.96/119,239.38 = 48,167.46/x
  3. Step 3: Cross multiply
    86,403.96x = 119,239.38 × 48,167.46
  4. Step 4: Simplify right side
    86,403.96x = 5,743,458,066.57
  5. Step 5: Solve for x
    x = 5,743,458,066.57/86,403.96
  6. Step 6: Final answer
    x = 66,472.16

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1.5x scale

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.