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Finding the Fourth Proportional to 92,580.94, 127,761.74 and 50,139.51

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Solution

The fourth proportional to 92,580.94, 127,761.74 and 50,139.51 is: 69,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,580.94 : 127,761.74 = 50,139.51 : x
  2. Step 2: Convert to fraction form
    92,580.94/127,761.74 = 50,139.51/x
  3. Step 3: Cross multiply
    92,580.94x = 127,761.74 × 50,139.51
  4. Step 4: Simplify right side
    92,580.94x = 6,405,911,040.35
  5. Step 5: Solve for x
    x = 6,405,911,040.35/92,580.94
  6. Step 6: Final answer
    x = 69,192.55

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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.