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Finding the Fourth Proportional to 165,528, 248,330.88 and 54,720

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Solution

The fourth proportional to 165,528, 248,330.88 and 54,720 is: 82,092.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,528 : 248,330.88 = 54,720 : x
  2. Step 2: Convert to fraction form
    165,528/248,330.88 = 54,720/x
  3. Step 3: Cross multiply
    165,528x = 248,330.88 × 54,720
  4. Step 4: Simplify right side
    165,528x = 13,588,665,753.60
  5. Step 5: Solve for x
    x = 13,588,665,753.60/165,528
  6. Step 6: Final answer
    x = 82,092.85

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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.