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Finding the Fourth Proportional to 70,244.87, 105,274.35 and 36,896.76

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Solution

The fourth proportional to 70,244.87, 105,274.35 and 36,896.76 is: 55,296.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,244.87 : 105,274.35 = 36,896.76 : x
  2. Step 2: Convert to fraction form
    70,244.87/105,274.35 = 36,896.76/x
  3. Step 3: Cross multiply
    70,244.87x = 105,274.35 × 36,896.76
  4. Step 4: Simplify right side
    70,244.87x = 3,884,282,426.11
  5. Step 5: Solve for x
    x = 3,884,282,426.11/70,244.87
  6. Step 6: Final answer
    x = 55,296.32

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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.