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Finding the Fourth Proportional to 253,887.78, 350,351.65 and 146,451.42

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Solution

The fourth proportional to 253,887.78, 350,351.65 and 146,451.42 is: 202,095.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,887.78 : 350,351.65 = 146,451.42 : x
  2. Step 2: Convert to fraction form
    253,887.78/350,351.65 = 146,451.42/x
  3. Step 3: Cross multiply
    253,887.78x = 350,351.65 × 146,451.42
  4. Step 4: Simplify right side
    253,887.78x = 51,309,496,641.84
  5. Step 5: Solve for x
    x = 51,309,496,641.84/253,887.78
  6. Step 6: Final answer
    x = 202,095.18

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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.