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Finding the Fourth Proportional to 71,497.60, 98,547.78 and 50,239.96

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Solution

The fourth proportional to 71,497.60, 98,547.78 and 50,239.96 is: 69,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,497.60 : 98,547.78 = 50,239.96 : x
  2. Step 2: Convert to fraction form
    71,497.60/98,547.78 = 50,239.96/x
  3. Step 3: Cross multiply
    71,497.60x = 98,547.78 × 50,239.96
  4. Step 4: Simplify right side
    71,497.60x = 4,951,036,525.29
  5. Step 5: Solve for x
    x = 4,951,036,525.29/71,497.60
  6. Step 6: Final answer
    x = 69,247.59

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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.