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Finding the Fourth Proportional to 223,313.94, 308,192.13 and 122,732.82

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Solution

The fourth proportional to 223,313.94, 308,192.13 and 122,732.82 is: 169,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,313.94 : 308,192.13 = 122,732.82 : x
  2. Step 2: Convert to fraction form
    223,313.94/308,192.13 = 122,732.82/x
  3. Step 3: Cross multiply
    223,313.94x = 308,192.13 × 122,732.82
  4. Step 4: Simplify right side
    223,313.94x = 37,825,289,216.71
  5. Step 5: Solve for x
    x = 37,825,289,216.71/223,313.94
  6. Step 6: Final answer
    x = 169,381.68

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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.