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Finding the Fourth Proportional to 124,149.63, 171,314.63 and 69,689.33

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Solution

The fourth proportional to 124,149.63, 171,314.63 and 69,689.33 is: 96,164.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,149.63 : 171,314.63 = 69,689.33 : x
  2. Step 2: Convert to fraction form
    124,149.63/171,314.63 = 69,689.33/x
  3. Step 3: Cross multiply
    124,149.63x = 171,314.63 × 69,689.33
  4. Step 4: Simplify right side
    124,149.63x = 11,938,800,927.32
  5. Step 5: Solve for x
    x = 11,938,800,927.32/124,149.63
  6. Step 6: Final answer
    x = 96,164.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.