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Finding the Fourth Proportional to 225,866.00, 311,751.72 and 153,391.52

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Solution

The fourth proportional to 225,866.00, 311,751.72 and 153,391.52 is: 211,718.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,866.00 : 311,751.72 = 153,391.52 : x
  2. Step 2: Convert to fraction form
    225,866.00/311,751.72 = 153,391.52/x
  3. Step 3: Cross multiply
    225,866.00x = 311,751.72 × 153,391.52
  4. Step 4: Simplify right side
    225,866.00x = 47,820,068,634.66
  5. Step 5: Solve for x
    x = 47,820,068,634.66/225,866.00
  6. Step 6: Final answer
    x = 211,718.76

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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.