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Finding the Fourth Proportional to 115,898.80, 173,848.20 and 104,234.80

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Solution

The fourth proportional to 115,898.80, 173,848.20 and 104,234.80 is: 156,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,898.80 : 173,848.20 = 104,234.80 : x
  2. Step 2: Convert to fraction form
    115,898.80/173,848.20 = 104,234.80/x
  3. Step 3: Cross multiply
    115,898.80x = 173,848.20 × 104,234.80
  4. Step 4: Simplify right side
    115,898.80x = 18,121,032,357.36
  5. Step 5: Solve for x
    x = 18,121,032,357.36/115,898.80
  6. Step 6: Final answer
    x = 156,352.20

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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.