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Finding the Fourth Proportional to 407,881.79, 611,910.23 and 171,088.01

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Solution

The fourth proportional to 407,881.79, 611,910.23 and 171,088.01 is: 256,668.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,881.79 : 611,910.23 = 171,088.01 : x
  2. Step 2: Convert to fraction form
    407,881.79/611,910.23 = 171,088.01/x
  3. Step 3: Cross multiply
    407,881.79x = 611,910.23 × 171,088.01
  4. Step 4: Simplify right side
    407,881.79x = 104,690,499,634.35
  5. Step 5: Solve for x
    x = 104,690,499,634.35/407,881.79
  6. Step 6: Final answer
    x = 256,668.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.