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Finding the Fourth Proportional to 172,955.60, 238,651.28 and 97,489.52

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Solution

The fourth proportional to 172,955.60, 238,651.28 and 97,489.52 is: 134,520.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,955.60 : 238,651.28 = 97,489.52 : x
  2. Step 2: Convert to fraction form
    172,955.60/238,651.28 = 97,489.52/x
  3. Step 3: Cross multiply
    172,955.60x = 238,651.28 × 97,489.52
  4. Step 4: Simplify right side
    172,955.60x = 23,265,998,734.59
  5. Step 5: Solve for x
    x = 23,265,998,734.59/172,955.60
  6. Step 6: Final answer
    x = 134,520.07

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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.