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Finding the Fourth Proportional to 110,866.23, 153,022.74 and 63,147.78

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Solution

The fourth proportional to 110,866.23, 153,022.74 and 63,147.78 is: 87,159.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,866.23 : 153,022.74 = 63,147.78 : x
  2. Step 2: Convert to fraction form
    110,866.23/153,022.74 = 63,147.78/x
  3. Step 3: Cross multiply
    110,866.23x = 153,022.74 × 63,147.78
  4. Step 4: Simplify right side
    110,866.23x = 9,663,046,320.52
  5. Step 5: Solve for x
    x = 9,663,046,320.52/110,866.23
  6. Step 6: Final answer
    x = 87,159.51

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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.