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Finding the Fourth Proportional to 70,702.56, 106,057.98 and 26,325.72

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Solution

The fourth proportional to 70,702.56, 106,057.98 and 26,325.72 is: 39,490.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,702.56 : 106,057.98 = 26,325.72 : x
  2. Step 2: Convert to fraction form
    70,702.56/106,057.98 = 26,325.72/x
  3. Step 3: Cross multiply
    70,702.56x = 106,057.98 × 26,325.72
  4. Step 4: Simplify right side
    70,702.56x = 2,792,052,685.25
  5. Step 5: Solve for x
    x = 2,792,052,685.25/70,702.56
  6. Step 6: Final answer
    x = 39,490.12

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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.