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Finding the Fourth Proportional to 86,158.44, 118,898.64 and 48,432.69

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Solution

The fourth proportional to 86,158.44, 118,898.64 and 48,432.69 is: 66,837.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,158.44 : 118,898.64 = 48,432.69 : x
  2. Step 2: Convert to fraction form
    86,158.44/118,898.64 = 48,432.69/x
  3. Step 3: Cross multiply
    86,158.44x = 118,898.64 × 48,432.69
  4. Step 4: Simplify right side
    86,158.44x = 5,758,580,972.54
  5. Step 5: Solve for x
    x = 5,758,580,972.54/86,158.44
  6. Step 6: Final answer
    x = 66,837.11

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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.