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Finding the Fourth Proportional to 251,768.70, 377,565.03 and 74,228.58

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Solution

The fourth proportional to 251,768.70, 377,565.03 and 74,228.58 is: 111,316.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,768.70 : 377,565.03 = 74,228.58 : x
  2. Step 2: Convert to fraction form
    251,768.70/377,565.03 = 74,228.58/x
  3. Step 3: Cross multiply
    251,768.70x = 377,565.03 × 74,228.58
  4. Step 4: Simplify right side
    251,768.70x = 28,026,116,034.56
  5. Step 5: Solve for x
    x = 28,026,116,034.56/251,768.70
  6. Step 6: Final answer
    x = 111,316.92

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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.