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Finding the Fourth Proportional to 110,924.78, 153,107.62 and 65,618.52

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Solution

The fourth proportional to 110,924.78, 153,107.62 and 65,618.52 is: 90,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,924.78 : 153,107.62 = 65,618.52 : x
  2. Step 2: Convert to fraction form
    110,924.78/153,107.62 = 65,618.52/x
  3. Step 3: Cross multiply
    110,924.78x = 153,107.62 × 65,618.52
  4. Step 4: Simplify right side
    110,924.78x = 10,046,695,425.12
  5. Step 5: Solve for x
    x = 10,046,695,425.12/110,924.78
  6. Step 6: Final answer
    x = 90,572.15

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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.