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Finding the Fourth Proportional to 168,369.84, 232,343.06 and 91,887

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Solution

The fourth proportional to 168,369.84, 232,343.06 and 91,887 is: 126,800.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,369.84 : 232,343.06 = 91,887 : x
  2. Step 2: Convert to fraction form
    168,369.84/232,343.06 = 91,887/x
  3. Step 3: Cross multiply
    168,369.84x = 232,343.06 × 91,887
  4. Step 4: Simplify right side
    168,369.84x = 21,349,306,754.22
  5. Step 5: Solve for x
    x = 21,349,306,754.22/168,369.84
  6. Step 6: Final answer
    x = 126,800.07

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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.