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Finding the Fourth Proportional to 123,937.70, 171,033.71 and 67,349.07

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Solution

The fourth proportional to 123,937.70, 171,033.71 and 67,349.07 is: 92,941.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,937.70 : 171,033.71 = 67,349.07 : x
  2. Step 2: Convert to fraction form
    123,937.70/171,033.71 = 67,349.07/x
  3. Step 3: Cross multiply
    123,937.70x = 171,033.71 × 67,349.07
  4. Step 4: Simplify right side
    123,937.70x = 11,518,960,970.40
  5. Step 5: Solve for x
    x = 11,518,960,970.40/123,937.70
  6. Step 6: Final answer
    x = 92,941.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.