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Finding the Fourth Proportional to 112,468.80, 168,703.20 and 29,362.80

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Solution

The fourth proportional to 112,468.80, 168,703.20 and 29,362.80 is: 44,044.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,468.80 : 168,703.20 = 29,362.80 : x
  2. Step 2: Convert to fraction form
    112,468.80/168,703.20 = 29,362.80/x
  3. Step 3: Cross multiply
    112,468.80x = 168,703.20 × 29,362.80
  4. Step 4: Simplify right side
    112,468.80x = 4,953,598,320.96
  5. Step 5: Solve for x
    x = 4,953,598,320.96/112,468.80
  6. Step 6: Final answer
    x = 44,044.20

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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.