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Finding the Fourth Proportional to 251,503.92, 377,315.82 and 74,016.72

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Solution

The fourth proportional to 251,503.92, 377,315.82 and 74,016.72 is: 111,042.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,503.92 : 377,315.82 = 74,016.72 : x
  2. Step 2: Convert to fraction form
    251,503.92/377,315.82 = 74,016.72/x
  3. Step 3: Cross multiply
    251,503.92x = 377,315.82 × 74,016.72
  4. Step 4: Simplify right side
    251,503.92x = 27,927,679,400.51
  5. Step 5: Solve for x
    x = 27,927,679,400.51/251,503.92
  6. Step 6: Final answer
    x = 111,042.72

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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.