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Finding the Fourth Proportional to 100,851.40, 151,277.10 and 67,673.80

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Solution

The fourth proportional to 100,851.40, 151,277.10 and 67,673.80 is: 101,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,851.40 : 151,277.10 = 67,673.80 : x
  2. Step 2: Convert to fraction form
    100,851.40/151,277.10 = 67,673.80/x
  3. Step 3: Cross multiply
    100,851.40x = 151,277.10 × 67,673.80
  4. Step 4: Simplify right side
    100,851.40x = 10,237,496,209.98
  5. Step 5: Solve for x
    x = 10,237,496,209.98/100,851.40
  6. Step 6: Final answer
    x = 101,510.70

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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.