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Finding the Fourth Proportional to 74,664.80, 112,013.42 and 34,708.32

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Solution

The fourth proportional to 74,664.80, 112,013.42 and 34,708.32 is: 52,070.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,664.80 : 112,013.42 = 34,708.32 : x
  2. Step 2: Convert to fraction form
    74,664.80/112,013.42 = 34,708.32/x
  3. Step 3: Cross multiply
    74,664.80x = 112,013.42 × 34,708.32
  4. Step 4: Simplify right side
    74,664.80x = 3,887,797,625.65
  5. Step 5: Solve for x
    x = 3,887,797,625.65/74,664.80
  6. Step 6: Final answer
    x = 52,070.02

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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.