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Finding the Fourth Proportional to 165,562.80, 248,253.48 and 65,621.76

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Solution

The fourth proportional to 165,562.80, 248,253.48 and 65,621.76 is: 98,396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,562.80 : 248,253.48 = 65,621.76 : x
  2. Step 2: Convert to fraction form
    165,562.80/248,253.48 = 65,621.76/x
  3. Step 3: Cross multiply
    165,562.80x = 248,253.48 × 65,621.76
  4. Step 4: Simplify right side
    165,562.80x = 16,290,830,283.72
  5. Step 5: Solve for x
    x = 16,290,830,283.72/165,562.80
  6. Step 6: Final answer
    x = 98,396.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.