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Finding the Fourth Proportional to 181,859.35, 250,965.74 and 105,422.79

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Solution

The fourth proportional to 181,859.35, 250,965.74 and 105,422.79 is: 145,483.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,859.35 : 250,965.74 = 105,422.79 : x
  2. Step 2: Convert to fraction form
    181,859.35/250,965.74 = 105,422.79/x
  3. Step 3: Cross multiply
    181,859.35x = 250,965.74 × 105,422.79
  4. Step 4: Simplify right side
    181,859.35x = 26,457,508,505.21
  5. Step 5: Solve for x
    x = 26,457,508,505.21/181,859.35
  6. Step 6: Final answer
    x = 145,483.36

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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.