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Finding the Fourth Proportional to 133,532.20, 200,006.70 and 103,716.10

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Solution

The fourth proportional to 133,532.20, 200,006.70 and 103,716.10 is: 155,347.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,532.20 : 200,006.70 = 103,716.10 : x
  2. Step 2: Convert to fraction form
    133,532.20/200,006.70 = 103,716.10/x
  3. Step 3: Cross multiply
    133,532.20x = 200,006.70 × 103,716.10
  4. Step 4: Simplify right side
    133,532.20x = 20,743,914,897.87
  5. Step 5: Solve for x
    x = 20,743,914,897.87/133,532.20
  6. Step 6: Final answer
    x = 155,347.66

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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.