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Finding the Fourth Proportional to 157,298.40, 235,936.80 and 50,680.80

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Solution

The fourth proportional to 157,298.40, 235,936.80 and 50,680.80 is: 76,017.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,298.40 : 235,936.80 = 50,680.80 : x
  2. Step 2: Convert to fraction form
    157,298.40/235,936.80 = 50,680.80/x
  3. Step 3: Cross multiply
    157,298.40x = 235,936.80 × 50,680.80
  4. Step 4: Simplify right side
    157,298.40x = 11,957,465,773.44
  5. Step 5: Solve for x
    x = 11,957,465,773.44/157,298.40
  6. Step 6: Final answer
    x = 76,017.72

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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.