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Finding the Fourth Proportional to 71,192.32, 106,853.16 and 37,940.80

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Solution

The fourth proportional to 71,192.32, 106,853.16 and 37,940.80 is: 56,945.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,192.32 : 106,853.16 = 37,940.80 : x
  2. Step 2: Convert to fraction form
    71,192.32/106,853.16 = 37,940.80/x
  3. Step 3: Cross multiply
    71,192.32x = 106,853.16 × 37,940.80
  4. Step 4: Simplify right side
    71,192.32x = 4,054,094,372.93
  5. Step 5: Solve for x
    x = 4,054,094,372.93/71,192.32
  6. Step 6: Final answer
    x = 56,945.67

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1.5x scale

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.