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Finding the Fourth Proportional to 79,595.76, 119,419.56 and 38,046

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Solution

The fourth proportional to 79,595.76, 119,419.56 and 38,046 is: 57,081.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,595.76 : 119,419.56 = 38,046 : x
  2. Step 2: Convert to fraction form
    79,595.76/119,419.56 = 38,046/x
  3. Step 3: Cross multiply
    79,595.76x = 119,419.56 × 38,046
  4. Step 4: Simplify right side
    79,595.76x = 4,543,436,579.76
  5. Step 5: Solve for x
    x = 4,543,436,579.76/79,595.76
  6. Step 6: Final answer
    x = 57,081.39

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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.