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Finding the Fourth Proportional to 112,980.57, 169,472.16 and 34,095.48

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Solution

The fourth proportional to 112,980.57, 169,472.16 and 34,095.48 is: 51,143.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,980.57 : 169,472.16 = 34,095.48 : x
  2. Step 2: Convert to fraction form
    112,980.57/169,472.16 = 34,095.48/x
  3. Step 3: Cross multiply
    112,980.57x = 169,472.16 × 34,095.48
  4. Step 4: Simplify right side
    112,980.57x = 5,778,234,641.84
  5. Step 5: Solve for x
    x = 5,778,234,641.84/112,980.57
  6. Step 6: Final answer
    x = 51,143.61

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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.