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Finding the Fourth Proportional to 561,271.98, 841,915.17 and 187,294.98

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Solution

The fourth proportional to 561,271.98, 841,915.17 and 187,294.98 is: 280,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,271.98 : 841,915.17 = 187,294.98 : x
  2. Step 2: Convert to fraction form
    561,271.98/841,915.17 = 187,294.98/x
  3. Step 3: Cross multiply
    561,271.98x = 841,915.17 × 187,294.98
  4. Step 4: Simplify right side
    561,271.98x = 157,686,484,926.85
  5. Step 5: Solve for x
    x = 157,686,484,926.85/561,271.98
  6. Step 6: Final answer
    x = 280,944.87

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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.