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Finding the Fourth Proportional to 172,930.76, 238,648.10 and 97,479.24

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Solution

The fourth proportional to 172,930.76, 238,648.10 and 97,479.24 is: 134,523.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,930.76 : 238,648.10 = 97,479.24 : x
  2. Step 2: Convert to fraction form
    172,930.76/238,648.10 = 97,479.24/x
  3. Step 3: Cross multiply
    172,930.76x = 238,648.10 × 97,479.24
  4. Step 4: Simplify right side
    172,930.76x = 23,263,235,415.44
  5. Step 5: Solve for x
    x = 23,263,235,415.44/172,930.76
  6. Step 6: Final answer
    x = 134,523.41

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1.5x scale

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.