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Finding the Fourth Proportional to 253,882.80, 350,357.54 and 140,705.55

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Solution

The fourth proportional to 253,882.80, 350,357.54 and 140,705.55 is: 194,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,882.80 : 350,357.54 = 140,705.55 : x
  2. Step 2: Convert to fraction form
    253,882.80/350,357.54 = 140,705.55/x
  3. Step 3: Cross multiply
    253,882.80x = 350,357.54 × 140,705.55
  4. Step 4: Simplify right side
    253,882.80x = 49,297,249,658.82
  5. Step 5: Solve for x
    x = 49,297,249,658.82/253,882.80
  6. Step 6: Final answer
    x = 194,173.25

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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.