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Finding the Fourth Proportional to 151,551.36, 209,136.30 and 83,568.30

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Solution

The fourth proportional to 151,551.36, 209,136.30 and 83,568.30 is: 115,321.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,551.36 : 209,136.30 = 83,568.30 : x
  2. Step 2: Convert to fraction form
    151,551.36/209,136.30 = 83,568.30/x
  3. Step 3: Cross multiply
    151,551.36x = 209,136.30 × 83,568.30
  4. Step 4: Simplify right side
    151,551.36x = 17,477,165,059.29
  5. Step 5: Solve for x
    x = 17,477,165,059.29/151,551.36
  6. Step 6: Final answer
    x = 115,321.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.