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Finding the Fourth Proportional to 103,744.92, 155,494.35 and 93,165.30

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Solution

The fourth proportional to 103,744.92, 155,494.35 and 93,165.30 is: 139,637.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,744.92 : 155,494.35 = 93,165.30 : x
  2. Step 2: Convert to fraction form
    103,744.92/155,494.35 = 93,165.30/x
  3. Step 3: Cross multiply
    103,744.92x = 155,494.35 × 93,165.30
  4. Step 4: Simplify right side
    103,744.92x = 14,486,677,766.06
  5. Step 5: Solve for x
    x = 14,486,677,766.06/103,744.92
  6. Step 6: Final answer
    x = 139,637.47

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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.