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Finding the Fourth Proportional to 136,097.97, 187,821.45 and 75,674.82

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Solution

The fourth proportional to 136,097.97, 187,821.45 and 75,674.82 is: 104,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,097.97 : 187,821.45 = 75,674.82 : x
  2. Step 2: Convert to fraction form
    136,097.97/187,821.45 = 75,674.82/x
  3. Step 3: Cross multiply
    136,097.97x = 187,821.45 × 75,674.82
  4. Step 4: Simplify right side
    136,097.97x = 14,213,354,420.89
  5. Step 5: Solve for x
    x = 14,213,354,420.89/136,097.97
  6. Step 6: Final answer
    x = 104,434.73

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1.5x scale

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.