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Finding the Fourth Proportional to 561,661.98, 842,825.88 and 206,924.91

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Solution

The fourth proportional to 561,661.98, 842,825.88 and 206,924.91 is: 310,510.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,661.98 : 842,825.88 = 206,924.91 : x
  2. Step 2: Convert to fraction form
    561,661.98/842,825.88 = 206,924.91/x
  3. Step 3: Cross multiply
    561,661.98x = 842,825.88 × 206,924.91
  4. Step 4: Simplify right side
    561,661.98x = 174,401,669,364.67
  5. Step 5: Solve for x
    x = 174,401,669,364.67/561,661.98
  6. Step 6: Final answer
    x = 310,510.01

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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.