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Finding the Fourth Proportional to 195,873.80, 294,117.90 and 112,929.80

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Solution

The fourth proportional to 195,873.80, 294,117.90 and 112,929.80 is: 169,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,873.80 : 294,117.90 = 112,929.80 : x
  2. Step 2: Convert to fraction form
    195,873.80/294,117.90 = 112,929.80/x
  3. Step 3: Cross multiply
    195,873.80x = 294,117.90 × 112,929.80
  4. Step 4: Simplify right side
    195,873.80x = 33,214,675,623.42
  5. Step 5: Solve for x
    x = 33,214,675,623.42/195,873.80
  6. Step 6: Final answer
    x = 169,571.81

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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.