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Finding the Fourth Proportional to 92,121.77, 127,127.81 and 51,835.61

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Solution

The fourth proportional to 92,121.77, 127,127.81 and 51,835.61 is: 71,533.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,121.77 : 127,127.81 = 51,835.61 : x
  2. Step 2: Convert to fraction form
    92,121.77/127,127.81 = 51,835.61/x
  3. Step 3: Cross multiply
    92,121.77x = 127,127.81 × 51,835.61
  4. Step 4: Simplify right side
    92,121.77x = 6,589,748,026.72
  5. Step 5: Solve for x
    x = 6,589,748,026.72/92,121.77
  6. Step 6: Final answer
    x = 71,533.01

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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.