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Finding the Fourth Proportional to 136,107.52, 187,828.55 and 75,677.52

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Solution

The fourth proportional to 136,107.52, 187,828.55 and 75,677.52 is: 104,435.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,107.52 : 187,828.55 = 75,677.52 : x
  2. Step 2: Convert to fraction form
    136,107.52/187,828.55 = 75,677.52/x
  3. Step 3: Cross multiply
    136,107.52x = 187,828.55 × 75,677.52
  4. Step 4: Simplify right side
    136,107.52x = 14,214,398,849.20
  5. Step 5: Solve for x
    x = 14,214,398,849.20/136,107.52
  6. Step 6: Final answer
    x = 104,435.07

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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.