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Finding the Fourth Proportional to 92,107.71, 126,801.59 and 87,875.87

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Solution

The fourth proportional to 92,107.71, 126,801.59 and 87,875.87 is: 120,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,107.71 : 126,801.59 = 87,875.87 : x
  2. Step 2: Convert to fraction form
    92,107.71/126,801.59 = 87,875.87/x
  3. Step 3: Cross multiply
    92,107.71x = 126,801.59 × 87,875.87
  4. Step 4: Simplify right side
    92,107.71x = 11,142,798,965.25
  5. Step 5: Solve for x
    x = 11,142,798,965.25/92,107.71
  6. Step 6: Final answer
    x = 120,975.75

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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.