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Finding the Fourth Proportional to 92,571.90, 127,747.71 and 50,130.06

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Solution

The fourth proportional to 92,571.90, 127,747.71 and 50,130.06 is: 69,178.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,571.90 : 127,747.71 = 50,130.06 : x
  2. Step 2: Convert to fraction form
    92,571.90/127,747.71 = 50,130.06/x
  3. Step 3: Cross multiply
    92,571.90x = 127,747.71 × 50,130.06
  4. Step 4: Simplify right side
    92,571.90x = 6,404,000,367.16
  5. Step 5: Solve for x
    x = 6,404,000,367.16/92,571.90
  6. Step 6: Final answer
    x = 69,178.66

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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.