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Finding the Fourth Proportional to 86,068.76, 118,774.92 and 48,343

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Solution

The fourth proportional to 86,068.76, 118,774.92 and 48,343 is: 66,713.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,068.76 : 118,774.92 = 48,343 : x
  2. Step 2: Convert to fraction form
    86,068.76/118,774.92 = 48,343/x
  3. Step 3: Cross multiply
    86,068.76x = 118,774.92 × 48,343
  4. Step 4: Simplify right side
    86,068.76x = 5,741,935,957.56
  5. Step 5: Solve for x
    x = 5,741,935,957.56/86,068.76
  6. Step 6: Final answer
    x = 66,713.36

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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.