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Finding the Fourth Proportional to 171,523.76, 236,720.32 and 98,929.52

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Solution

The fourth proportional to 171,523.76, 236,720.32 and 98,929.52 is: 136,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,523.76 : 236,720.32 = 98,929.52 : x
  2. Step 2: Convert to fraction form
    171,523.76/236,720.32 = 98,929.52/x
  3. Step 3: Cross multiply
    171,523.76x = 236,720.32 × 98,929.52
  4. Step 4: Simplify right side
    171,523.76x = 23,418,627,631.85
  5. Step 5: Solve for x
    x = 23,418,627,631.85/171,523.76
  6. Step 6: Final answer
    x = 136,532.85

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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.