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Finding the Fourth Proportional to 79,949.76, 119,903.76 and 23,774.76

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Solution

The fourth proportional to 79,949.76, 119,903.76 and 23,774.76 is: 35,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,949.76 : 119,903.76 = 23,774.76 : x
  2. Step 2: Convert to fraction form
    79,949.76/119,903.76 = 23,774.76/x
  3. Step 3: Cross multiply
    79,949.76x = 119,903.76 × 23,774.76
  4. Step 4: Simplify right side
    79,949.76x = 2,850,683,117.10
  5. Step 5: Solve for x
    x = 2,850,683,117.10/79,949.76
  6. Step 6: Final answer
    x = 35,655.93

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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.