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Finding the Fourth Proportional to 273,959.52, 378,065.53 and 153,102.82

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Solution

The fourth proportional to 273,959.52, 378,065.53 and 153,102.82 is: 211,282.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,959.52 : 378,065.53 = 153,102.82 : x
  2. Step 2: Convert to fraction form
    273,959.52/378,065.53 = 153,102.82/x
  3. Step 3: Cross multiply
    273,959.52x = 378,065.53 × 153,102.82
  4. Step 4: Simplify right side
    273,959.52x = 57,882,899,382.19
  5. Step 5: Solve for x
    x = 57,882,899,382.19/273,959.52
  6. Step 6: Final answer
    x = 211,282.67

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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.