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Finding the Fourth Proportional to 67,955.85, 101,880.42 and 42,943.26

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Solution

The fourth proportional to 67,955.85, 101,880.42 and 42,943.26 is: 64,381.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,955.85 : 101,880.42 = 42,943.26 : x
  2. Step 2: Convert to fraction form
    67,955.85/101,880.42 = 42,943.26/x
  3. Step 3: Cross multiply
    67,955.85x = 101,880.42 × 42,943.26
  4. Step 4: Simplify right side
    67,955.85x = 4,375,077,364.97
  5. Step 5: Solve for x
    x = 4,375,077,364.97/67,955.85
  6. Step 6: Final answer
    x = 64,381.17

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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.