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Finding the Fourth Proportional to 252,988.24, 349,120.56 and 139,808.56

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Solution

The fourth proportional to 252,988.24, 349,120.56 and 139,808.56 is: 192,934.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,988.24 : 349,120.56 = 139,808.56 : x
  2. Step 2: Convert to fraction form
    252,988.24/349,120.56 = 139,808.56/x
  3. Step 3: Cross multiply
    252,988.24x = 349,120.56 × 139,808.56
  4. Step 4: Simplify right side
    252,988.24x = 48,810,042,759.99
  5. Step 5: Solve for x
    x = 48,810,042,759.99/252,988.24
  6. Step 6: Final answer
    x = 192,934.04

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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.