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Finding the Fourth Proportional to 101,276.10, 151,914.15 and 61,877.70

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Solution

The fourth proportional to 101,276.10, 151,914.15 and 61,877.70 is: 92,816.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,276.10 : 151,914.15 = 61,877.70 : x
  2. Step 2: Convert to fraction form
    101,276.10/151,914.15 = 61,877.70/x
  3. Step 3: Cross multiply
    101,276.10x = 151,914.15 × 61,877.70
  4. Step 4: Simplify right side
    101,276.10x = 9,400,098,199.46
  5. Step 5: Solve for x
    x = 9,400,098,199.46/101,276.10
  6. Step 6: Final answer
    x = 92,816.55

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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.