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Finding the Fourth Proportional to 86,045.27, 118,743.86 and 48,318.71

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Solution

The fourth proportional to 86,045.27, 118,743.86 and 48,318.71 is: 66,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,045.27 : 118,743.86 = 48,318.71 : x
  2. Step 2: Convert to fraction form
    86,045.27/118,743.86 = 48,318.71/x
  3. Step 3: Cross multiply
    86,045.27x = 118,743.86 × 48,318.71
  4. Step 4: Simplify right side
    86,045.27x = 5,737,549,894.03
  5. Step 5: Solve for x
    x = 5,737,549,894.03/86,045.27
  6. Step 6: Final answer
    x = 66,680.60

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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.