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Finding the Fourth Proportional to 202,713, 279,752.58 and 113,289

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Solution

The fourth proportional to 202,713, 279,752.58 and 113,289 is: 156,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,713 : 279,752.58 = 113,289 : x
  2. Step 2: Convert to fraction form
    202,713/279,752.58 = 113,289/x
  3. Step 3: Cross multiply
    202,713x = 279,752.58 × 113,289
  4. Step 4: Simplify right side
    202,713x = 31,692,890,035.62
  5. Step 5: Solve for x
    x = 31,692,890,035.62/202,713
  6. Step 6: Final answer
    x = 156,343.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.