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Finding the Fourth Proportional to 191,209.95, 286,859.79 and 188,036.37

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Solution

The fourth proportional to 191,209.95, 286,859.79 and 188,036.37 is: 282,098.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,209.95 : 286,859.79 = 188,036.37 : x
  2. Step 2: Convert to fraction form
    191,209.95/286,859.79 = 188,036.37/x
  3. Step 3: Cross multiply
    191,209.95x = 286,859.79 × 188,036.37
  4. Step 4: Simplify right side
    191,209.95x = 53,940,073,610.56
  5. Step 5: Solve for x
    x = 53,940,073,610.56/191,209.95
  6. Step 6: Final answer
    x = 282,098.68

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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.