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Finding the Fourth Proportional to 253,240.77, 349,448.81 and 140,061.09

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Solution

The fourth proportional to 253,240.77, 349,448.81 and 140,061.09 is: 193,271.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,240.77 : 349,448.81 = 140,061.09 : x
  2. Step 2: Convert to fraction form
    253,240.77/349,448.81 = 140,061.09/x
  3. Step 3: Cross multiply
    253,240.77x = 349,448.81 × 140,061.09
  4. Step 4: Simplify right side
    253,240.77x = 48,944,180,527.50
  5. Step 5: Solve for x
    x = 48,944,180,527.50/253,240.77
  6. Step 6: Final answer
    x = 193,271.33

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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.