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Finding the Fourth Proportional to 561,144.70, 841,720.29 and 187,166.62

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Solution

The fourth proportional to 561,144.70, 841,720.29 and 187,166.62 is: 280,751.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,144.70 : 841,720.29 = 187,166.62 : x
  2. Step 2: Convert to fraction form
    561,144.70/841,720.29 = 187,166.62/x
  3. Step 3: Cross multiply
    561,144.70x = 841,720.29 × 187,166.62
  4. Step 4: Simplify right side
    561,144.70x = 157,541,941,664.72
  5. Step 5: Solve for x
    x = 157,541,941,664.72/561,144.70
  6. Step 6: Final answer
    x = 280,751.01

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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.