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Finding the Fourth Proportional to 67,371.20, 101,056.80 and 64,090.70

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Solution

The fourth proportional to 67,371.20, 101,056.80 and 64,090.70 is: 96,136.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,371.20 : 101,056.80 = 64,090.70 : x
  2. Step 2: Convert to fraction form
    67,371.20/101,056.80 = 64,090.70/x
  3. Step 3: Cross multiply
    67,371.20x = 101,056.80 × 64,090.70
  4. Step 4: Simplify right side
    67,371.20x = 6,476,801,051.76
  5. Step 5: Solve for x
    x = 6,476,801,051.76/67,371.20
  6. Step 6: Final answer
    x = 96,136.05

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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.