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Finding the Fourth Proportional to 253,813.44, 350,262.72 and 140,638.08

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Solution

The fourth proportional to 253,813.44, 350,262.72 and 140,638.08 is: 194,080.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,813.44 : 350,262.72 = 140,638.08 : x
  2. Step 2: Convert to fraction form
    253,813.44/350,262.72 = 140,638.08/x
  3. Step 3: Cross multiply
    253,813.44x = 350,262.72 × 140,638.08
  4. Step 4: Simplify right side
    253,813.44x = 49,260,276,436.38
  5. Step 5: Solve for x
    x = 49,260,276,436.38/253,813.44
  6. Step 6: Final answer
    x = 194,080.65

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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.