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Finding the Fourth Proportional to 101,869.74, 152,804.48 and 38,689.74

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Solution

The fourth proportional to 101,869.74, 152,804.48 and 38,689.74 is: 58,034.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,869.74 : 152,804.48 = 38,689.74 : x
  2. Step 2: Convert to fraction form
    101,869.74/152,804.48 = 38,689.74/x
  3. Step 3: Cross multiply
    101,869.74x = 152,804.48 × 38,689.74
  4. Step 4: Simplify right side
    101,869.74x = 5,911,965,408.59
  5. Step 5: Solve for x
    x = 5,911,965,408.59/101,869.74
  6. Step 6: Final answer
    x = 58,034.56

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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.