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Finding the Fourth Proportional to 207,236.16, 285,984.80 and 117,812.80

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Solution

The fourth proportional to 207,236.16, 285,984.80 and 117,812.80 is: 162,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,236.16 : 285,984.80 = 117,812.80 : x
  2. Step 2: Convert to fraction form
    207,236.16/285,984.80 = 117,812.80/x
  3. Step 3: Cross multiply
    207,236.16x = 285,984.80 × 117,812.80
  4. Step 4: Simplify right side
    207,236.16x = 33,692,670,045.44
  5. Step 5: Solve for x
    x = 33,692,670,045.44/207,236.16
  6. Step 6: Final answer
    x = 162,581.04

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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.