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Finding the Fourth Proportional to 201,850.56, 278,614.08 and 117,005.76

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Solution

The fourth proportional to 201,850.56, 278,614.08 and 117,005.76 is: 161,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,850.56 : 278,614.08 = 117,005.76 : x
  2. Step 2: Convert to fraction form
    201,850.56/278,614.08 = 117,005.76/x
  3. Step 3: Cross multiply
    201,850.56x = 278,614.08 × 117,005.76
  4. Step 4: Simplify right side
    201,850.56x = 32,599,452,177.10
  5. Step 5: Solve for x
    x = 32,599,452,177.10/201,850.56
  6. Step 6: Final answer
    x = 161,502.91

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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.