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Finding the Fourth Proportional to 136,473.30, 204,515.55 and 100,655.10

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Solution

The fourth proportional to 136,473.30, 204,515.55 and 100,655.10 is: 150,839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,473.30 : 204,515.55 = 100,655.10 : x
  2. Step 2: Convert to fraction form
    136,473.30/204,515.55 = 100,655.10/x
  3. Step 3: Cross multiply
    136,473.30x = 204,515.55 × 100,655.10
  4. Step 4: Simplify right side
    136,473.30x = 20,585,533,136.81
  5. Step 5: Solve for x
    x = 20,585,533,136.81/136,473.30
  6. Step 6: Final answer
    x = 150,839.27

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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.