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Finding the Fourth Proportional to 192,776.84, 288,048.73 and 139,213.88

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Solution

The fourth proportional to 192,776.84, 288,048.73 and 139,213.88 is: 208,014.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,776.84 : 288,048.73 = 139,213.88 : x
  2. Step 2: Convert to fraction form
    192,776.84/288,048.73 = 139,213.88/x
  3. Step 3: Cross multiply
    192,776.84x = 288,048.73 × 139,213.88
  4. Step 4: Simplify right side
    192,776.84x = 40,100,381,332.37
  5. Step 5: Solve for x
    x = 40,100,381,332.37/192,776.84
  6. Step 6: Final answer
    x = 208,014.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.