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Finding the Fourth Proportional to 202,530.93, 279,491.36 and 111,892.74

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Solution

The fourth proportional to 202,530.93, 279,491.36 and 111,892.74 is: 154,411.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,530.93 : 279,491.36 = 111,892.74 : x
  2. Step 2: Convert to fraction form
    202,530.93/279,491.36 = 111,892.74/x
  3. Step 3: Cross multiply
    202,530.93x = 279,491.36 × 111,892.74
  4. Step 4: Simplify right side
    202,530.93x = 31,273,053,517.26
  5. Step 5: Solve for x
    x = 31,273,053,517.26/202,530.93
  6. Step 6: Final answer
    x = 154,411.25

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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.