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Finding the Fourth Proportional to 195,253.70, 292,768.44 and 76,860.45

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Solution

The fourth proportional to 195,253.70, 292,768.44 and 76,860.45 is: 115,246.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,253.70 : 292,768.44 = 76,860.45 : x
  2. Step 2: Convert to fraction form
    195,253.70/292,768.44 = 76,860.45/x
  3. Step 3: Cross multiply
    195,253.70x = 292,768.44 × 76,860.45
  4. Step 4: Simplify right side
    195,253.70x = 22,502,314,044.20
  5. Step 5: Solve for x
    x = 22,502,314,044.20/195,253.70
  6. Step 6: Final answer
    x = 115,246.55

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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.