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Finding the Fourth Proportional to 202,553.01, 279,519.26 and 111,912.93

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Solution

The fourth proportional to 202,553.01, 279,519.26 and 111,912.93 is: 154,437.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,553.01 : 279,519.26 = 111,912.93 : x
  2. Step 2: Convert to fraction form
    202,553.01/279,519.26 = 111,912.93/x
  3. Step 3: Cross multiply
    202,553.01x = 279,519.26 × 111,912.93
  4. Step 4: Simplify right side
    202,553.01x = 31,281,818,818.47
  5. Step 5: Solve for x
    x = 31,281,818,818.47/202,553.01
  6. Step 6: Final answer
    x = 154,437.69

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1.5x scale

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.