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Finding the Fourth Proportional to 101,244.12, 139,585.86 and 69,356.04

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Solution

The fourth proportional to 101,244.12, 139,585.86 and 69,356.04 is: 95,621.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,244.12 : 139,585.86 = 69,356.04 : x
  2. Step 2: Convert to fraction form
    101,244.12/139,585.86 = 69,356.04/x
  3. Step 3: Cross multiply
    101,244.12x = 139,585.86 × 69,356.04
  4. Step 4: Simplify right side
    101,244.12x = 9,681,122,489.59
  5. Step 5: Solve for x
    x = 9,681,122,489.59/101,244.12
  6. Step 6: Final answer
    x = 95,621.58

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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.