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Finding the Fourth Proportional to 109,924.88, 151,640.52 and 69,570.64

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Solution

The fourth proportional to 109,924.88, 151,640.52 and 69,570.64 is: 95,972.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,924.88 : 151,640.52 = 69,570.64 : x
  2. Step 2: Convert to fraction form
    109,924.88/151,640.52 = 69,570.64/x
  3. Step 3: Cross multiply
    109,924.88x = 151,640.52 × 69,570.64
  4. Step 4: Simplify right side
    109,924.88x = 10,549,728,026.33
  5. Step 5: Solve for x
    x = 10,549,728,026.33/109,924.88
  6. Step 6: Final answer
    x = 95,972.16

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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.