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Finding the Fourth Proportional to 201,929.00, 278,660.61 and 111,285.02

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Solution

The fourth proportional to 201,929.00, 278,660.61 and 111,285.02 is: 153,572.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,929.00 : 278,660.61 = 111,285.02 : x
  2. Step 2: Convert to fraction form
    201,929.00/278,660.61 = 111,285.02/x
  3. Step 3: Cross multiply
    201,929.00x = 278,660.61 × 111,285.02
  4. Step 4: Simplify right side
    201,929.00x = 31,010,752,253.71
  5. Step 5: Solve for x
    x = 31,010,752,253.71/201,929.00
  6. Step 6: Final answer
    x = 153,572.56

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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.