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Finding the Fourth Proportional to 136,863.51, 205,304.31 and 65,801.13

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Solution

The fourth proportional to 136,863.51, 205,304.31 and 65,801.13 is: 98,706.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,863.51 : 205,304.31 = 65,801.13 : x
  2. Step 2: Convert to fraction form
    136,863.51/205,304.31 = 65,801.13/x
  3. Step 3: Cross multiply
    136,863.51x = 205,304.31 × 65,801.13
  4. Step 4: Simplify right side
    136,863.51x = 13,509,255,591.87
  5. Step 5: Solve for x
    x = 13,509,255,591.87/136,863.51
  6. Step 6: Final answer
    x = 98,706.04

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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.