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Finding the Fourth Proportional to 195,713.01, 293,071.06 and 128,950.79

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Solution

The fourth proportional to 195,713.01, 293,071.06 and 128,950.79 is: 193,097.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,713.01 : 293,071.06 = 128,950.79 : x
  2. Step 2: Convert to fraction form
    195,713.01/293,071.06 = 128,950.79/x
  3. Step 3: Cross multiply
    195,713.01x = 293,071.06 × 128,950.79
  4. Step 4: Simplify right side
    195,713.01x = 37,791,743,408.97
  5. Step 5: Solve for x
    x = 37,791,743,408.97/195,713.01
  6. Step 6: Final answer
    x = 193,097.76

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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.