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Finding the Fourth Proportional to 104,488.70, 156,733.05 and 25,603.70

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Solution

The fourth proportional to 104,488.70, 156,733.05 and 25,603.70 is: 38,405.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,488.70 : 156,733.05 = 25,603.70 : x
  2. Step 2: Convert to fraction form
    104,488.70/156,733.05 = 25,603.70/x
  3. Step 3: Cross multiply
    104,488.70x = 156,733.05 × 25,603.70
  4. Step 4: Simplify right side
    104,488.70x = 4,012,945,992.29
  5. Step 5: Solve for x
    x = 4,012,945,992.29/104,488.70
  6. Step 6: Final answer
    x = 38,405.55

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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.