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Finding the Fourth Proportional to 92,186.84, 127,209.72 and 51,347.90

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Solution

The fourth proportional to 92,186.84, 127,209.72 and 51,347.90 is: 70,855.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,186.84 : 127,209.72 = 51,347.90 : x
  2. Step 2: Convert to fraction form
    92,186.84/127,209.72 = 51,347.90/x
  3. Step 3: Cross multiply
    92,186.84x = 127,209.72 × 51,347.90
  4. Step 4: Simplify right side
    92,186.84x = 6,531,951,981.59
  5. Step 5: Solve for x
    x = 6,531,951,981.59/92,186.84
  6. Step 6: Final answer
    x = 70,855.58

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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.