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Finding the Fourth Proportional to 253,781.82, 350,218.98 and 139,059.52

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Solution

The fourth proportional to 253,781.82, 350,218.98 and 139,059.52 is: 191,902.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,781.82 : 350,218.98 = 139,059.52 : x
  2. Step 2: Convert to fraction form
    253,781.82/350,218.98 = 139,059.52/x
  3. Step 3: Cross multiply
    253,781.82x = 350,218.98 × 139,059.52
  4. Step 4: Simplify right side
    253,781.82x = 48,701,282,378.14
  5. Step 5: Solve for x
    x = 48,701,282,378.14/253,781.82
  6. Step 6: Final answer
    x = 191,902.17

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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.