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Finding the Fourth Proportional to 71,191.88, 106,981.81 and 37,935.71

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Solution

The fourth proportional to 71,191.88, 106,981.81 and 37,935.71 is: 57,006.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,191.88 : 106,981.81 = 37,935.71 : x
  2. Step 2: Convert to fraction form
    71,191.88/106,981.81 = 37,935.71/x
  3. Step 3: Cross multiply
    71,191.88x = 106,981.81 × 37,935.71
  4. Step 4: Simplify right side
    71,191.88x = 4,058,430,904.26
  5. Step 5: Solve for x
    x = 4,058,430,904.26/71,191.88
  6. Step 6: Final answer
    x = 57,006.94

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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.