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Finding the Fourth Proportional to 251,377.32, 377,339.22 and 101,720.64

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Solution

The fourth proportional to 251,377.32, 377,339.22 and 101,720.64 is: 152,691.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,377.32 : 377,339.22 = 101,720.64 : x
  2. Step 2: Convert to fraction form
    251,377.32/377,339.22 = 101,720.64/x
  3. Step 3: Cross multiply
    251,377.32x = 377,339.22 × 101,720.64
  4. Step 4: Simplify right side
    251,377.32x = 38,383,186,955.50
  5. Step 5: Solve for x
    x = 38,383,186,955.50/251,377.32
  6. Step 6: Final answer
    x = 152,691.53

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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.