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Finding the Fourth Proportional to 195,018.50, 269,125.54 and 105,594.50

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Solution

The fourth proportional to 195,018.50, 269,125.54 and 105,594.50 is: 145,720.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,018.50 : 269,125.54 = 105,594.50 : x
  2. Step 2: Convert to fraction form
    195,018.50/269,125.54 = 105,594.50/x
  3. Step 3: Cross multiply
    195,018.50x = 269,125.54 × 105,594.50
  4. Step 4: Simplify right side
    195,018.50x = 28,418,176,833.53
  5. Step 5: Solve for x
    x = 28,418,176,833.53/195,018.50
  6. Step 6: Final answer
    x = 145,720.42

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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.