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Finding the Fourth Proportional to 173,136, 238,928.16 and 93,648

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Solution

The fourth proportional to 173,136, 238,928.16 and 93,648 is: 129,234.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,136 : 238,928.16 = 93,648 : x
  2. Step 2: Convert to fraction form
    173,136/238,928.16 = 93,648/x
  3. Step 3: Cross multiply
    173,136x = 238,928.16 × 93,648
  4. Step 4: Simplify right side
    173,136x = 22,375,144,327.68
  5. Step 5: Solve for x
    x = 22,375,144,327.68/173,136
  6. Step 6: Final answer
    x = 129,234.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.