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Finding the Fourth Proportional to 173,624.40, 260,436.60 and 68,389.20

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Solution

The fourth proportional to 173,624.40, 260,436.60 and 68,389.20 is: 102,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,624.40 : 260,436.60 = 68,389.20 : x
  2. Step 2: Convert to fraction form
    173,624.40/260,436.60 = 68,389.20/x
  3. Step 3: Cross multiply
    173,624.40x = 260,436.60 × 68,389.20
  4. Step 4: Simplify right side
    173,624.40x = 17,811,050,724.72
  5. Step 5: Solve for x
    x = 17,811,050,724.72/173,624.40
  6. Step 6: Final answer
    x = 102,583.80

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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.