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Finding the Fourth Proportional to 173,428, 260,136.20 and 73,523.92

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Solution

The fourth proportional to 173,428, 260,136.20 and 73,523.92 is: 110,283.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,428 : 260,136.20 = 73,523.92 : x
  2. Step 2: Convert to fraction form
    173,428/260,136.20 = 73,523.92/x
  3. Step 3: Cross multiply
    173,428x = 260,136.20 × 73,523.92
  4. Step 4: Simplify right side
    173,428x = 19,126,233,157.90
  5. Step 5: Solve for x
    x = 19,126,233,157.90/173,428
  6. Step 6: Final answer
    x = 110,283.42

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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.