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Finding the Fourth Proportional to 171,438.80, 256,959.48 and 101,377.04

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Solution

The fourth proportional to 171,438.80, 256,959.48 and 101,377.04 is: 151,948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,438.80 : 256,959.48 = 101,377.04 : x
  2. Step 2: Convert to fraction form
    171,438.80/256,959.48 = 101,377.04/x
  3. Step 3: Cross multiply
    171,438.80x = 256,959.48 × 101,377.04
  4. Step 4: Simplify right side
    171,438.80x = 26,049,791,482.34
  5. Step 5: Solve for x
    x = 26,049,791,482.34/171,438.80
  6. Step 6: Final answer
    x = 151,948.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.