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Finding the Fourth Proportional to 136,264.39, 188,043.01 and 75,835.04

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Solution

The fourth proportional to 136,264.39, 188,043.01 and 75,835.04 is: 104,651.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,264.39 : 188,043.01 = 75,835.04 : x
  2. Step 2: Convert to fraction form
    136,264.39/188,043.01 = 75,835.04/x
  3. Step 3: Cross multiply
    136,264.39x = 188,043.01 × 75,835.04
  4. Step 4: Simplify right side
    136,264.39x = 14,260,248,960.46
  5. Step 5: Solve for x
    x = 14,260,248,960.46/136,264.39
  6. Step 6: Final answer
    x = 104,651.32

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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.