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Finding the Fourth Proportional to 111,064.56, 153,273.24 and 63,316.68

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Solution

The fourth proportional to 111,064.56, 153,273.24 and 63,316.68 is: 87,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,064.56 : 153,273.24 = 63,316.68 : x
  2. Step 2: Convert to fraction form
    111,064.56/153,273.24 = 63,316.68/x
  3. Step 3: Cross multiply
    111,064.56x = 153,273.24 × 63,316.68
  4. Step 4: Simplify right side
    111,064.56x = 9,704,752,689.64
  5. Step 5: Solve for x
    x = 9,704,752,689.64/111,064.56
  6. Step 6: Final answer
    x = 87,379.38

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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.