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Finding the Fourth Proportional to 202,670.37, 279,670.30 and 112,021.24

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Solution

The fourth proportional to 202,670.37, 279,670.30 and 112,021.24 is: 154,581.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,670.37 : 279,670.30 = 112,021.24 : x
  2. Step 2: Convert to fraction form
    202,670.37/279,670.30 = 112,021.24/x
  3. Step 3: Cross multiply
    202,670.37x = 279,670.30 × 112,021.24
  4. Step 4: Simplify right side
    202,670.37x = 31,329,013,797.17
  5. Step 5: Solve for x
    x = 31,329,013,797.17/202,670.37
  6. Step 6: Final answer
    x = 154,581.12

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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.