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Finding the Fourth Proportional to 92,102.10, 138,123.76 and 35,928.55

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Solution

The fourth proportional to 92,102.10, 138,123.76 and 35,928.55 is: 53,881.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,102.10 : 138,123.76 = 35,928.55 : x
  2. Step 2: Convert to fraction form
    92,102.10/138,123.76 = 35,928.55/x
  3. Step 3: Cross multiply
    92,102.10x = 138,123.76 × 35,928.55
  4. Step 4: Simplify right side
    92,102.10x = 4,962,586,417.35
  5. Step 5: Solve for x
    x = 4,962,586,417.35/92,102.10
  6. Step 6: Final answer
    x = 53,881.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.