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Finding the Fourth Proportional to 111,100.56, 153,318.87 and 63,352.68

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Solution

The fourth proportional to 111,100.56, 153,318.87 and 63,352.68 is: 87,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,100.56 : 153,318.87 = 63,352.68 : x
  2. Step 2: Convert to fraction form
    111,100.56/153,318.87 = 63,352.68/x
  3. Step 3: Cross multiply
    111,100.56x = 153,318.87 × 63,352.68
  4. Step 4: Simplify right side
    111,100.56x = 9,713,161,309.07
  5. Step 5: Solve for x
    x = 9,713,161,309.07/111,100.56
  6. Step 6: Final answer
    x = 87,426.75

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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.