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Finding the Fourth Proportional to 202,353, 279,248.22 and 112,929

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Solution

The fourth proportional to 202,353, 279,248.22 and 112,929 is: 155,842.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,353 : 279,248.22 = 112,929 : x
  2. Step 2: Convert to fraction form
    202,353/279,248.22 = 112,929/x
  3. Step 3: Cross multiply
    202,353x = 279,248.22 × 112,929
  4. Step 4: Simplify right side
    202,353x = 31,535,222,236.38
  5. Step 5: Solve for x
    x = 31,535,222,236.38/202,353
  6. Step 6: Final answer
    x = 155,842.62

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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.