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Finding the Fourth Proportional to 136,259.80, 190,960.55 and 136,259.80

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Solution

The fourth proportional to 136,259.80, 190,960.55 and 136,259.80 is: 190,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,259.80 : 190,960.55 = 136,259.80 : x
  2. Step 2: Convert to fraction form
    136,259.80/190,960.55 = 136,259.80/x
  3. Step 3: Cross multiply
    136,259.80x = 190,960.55 × 136,259.80
  4. Step 4: Simplify right side
    136,259.80x = 26,020,246,350.89
  5. Step 5: Solve for x
    x = 26,020,246,350.89/136,259.80
  6. Step 6: Final answer
    x = 190,960.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.