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Finding the Fourth Proportional to 67,274.56, 100,756.32 and 64,941.76

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Solution

The fourth proportional to 67,274.56, 100,756.32 and 64,941.76 is: 97,262.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,274.56 : 100,756.32 = 64,941.76 : x
  2. Step 2: Convert to fraction form
    67,274.56/100,756.32 = 64,941.76/x
  3. Step 3: Cross multiply
    67,274.56x = 100,756.32 × 64,941.76
  4. Step 4: Simplify right side
    67,274.56x = 6,543,292,751.92
  5. Step 5: Solve for x
    x = 6,543,292,751.92/67,274.56
  6. Step 6: Final answer
    x = 97,262.51

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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.