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Finding the Fourth Proportional to 92,834.49, 128,111.70 and 50,393.01

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Solution

The fourth proportional to 92,834.49, 128,111.70 and 50,393.01 is: 69,542.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,834.49 : 128,111.70 = 50,393.01 : x
  2. Step 2: Convert to fraction form
    92,834.49/128,111.70 = 50,393.01/x
  3. Step 3: Cross multiply
    92,834.49x = 128,111.70 × 50,393.01
  4. Step 4: Simplify right side
    92,834.49x = 6,455,934,179.22
  5. Step 5: Solve for x
    x = 6,455,934,179.22/92,834.49
  6. Step 6: Final answer
    x = 69,542.41

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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.