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Finding the Fourth Proportional to 202,665.96, 279,670.68 and 117,776.52

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Solution

The fourth proportional to 202,665.96, 279,670.68 and 117,776.52 is: 162,526.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,665.96 : 279,670.68 = 117,776.52 : x
  2. Step 2: Convert to fraction form
    202,665.96/279,670.68 = 117,776.52/x
  3. Step 3: Cross multiply
    202,665.96x = 279,670.68 × 117,776.52
  4. Step 4: Simplify right side
    202,665.96x = 32,938,639,436.43
  5. Step 5: Solve for x
    x = 32,938,639,436.43/202,665.96
  6. Step 6: Final answer
    x = 162,526.75

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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.