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Finding the Fourth Proportional to 202,560.63, 279,526.12 and 111,914.65

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Solution

The fourth proportional to 202,560.63, 279,526.12 and 111,914.65 is: 154,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,560.63 : 279,526.12 = 111,914.65 : x
  2. Step 2: Convert to fraction form
    202,560.63/279,526.12 = 111,914.65/x
  3. Step 3: Cross multiply
    202,560.63x = 279,526.12 × 111,914.65
  4. Step 4: Simplify right side
    202,560.63x = 31,283,069,370.97
  5. Step 5: Solve for x
    x = 31,283,069,370.97/202,560.63
  6. Step 6: Final answer
    x = 154,438.05

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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.