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Finding the Fourth Proportional to 88,930.40, 133,222.80 and 49,416.80

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Solution

The fourth proportional to 88,930.40, 133,222.80 and 49,416.80 is: 74,029.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,930.40 : 133,222.80 = 49,416.80 : x
  2. Step 2: Convert to fraction form
    88,930.40/133,222.80 = 49,416.80/x
  3. Step 3: Cross multiply
    88,930.40x = 133,222.80 × 49,416.80
  4. Step 4: Simplify right side
    88,930.40x = 6,583,444,463.04
  5. Step 5: Solve for x
    x = 6,583,444,463.04/88,930.40
  6. Step 6: Final answer
    x = 74,029.18

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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.