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Finding the Fourth Proportional to 173,342.40, 260,037.90 and 68,136.90

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Solution

The fourth proportional to 173,342.40, 260,037.90 and 68,136.90 is: 102,214.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,342.40 : 260,037.90 = 68,136.90 : x
  2. Step 2: Convert to fraction form
    173,342.40/260,037.90 = 68,136.90/x
  3. Step 3: Cross multiply
    173,342.40x = 260,037.90 × 68,136.90
  4. Step 4: Simplify right side
    173,342.40x = 17,718,176,388.51
  5. Step 5: Solve for x
    x = 17,718,176,388.51/173,342.40
  6. Step 6: Final answer
    x = 102,214.90

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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.