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Finding the Fourth Proportional to 270,502.74, 373,321.81 and 155,785.48

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Solution

The fourth proportional to 270,502.74, 373,321.81 and 155,785.48 is: 215,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,502.74 : 373,321.81 = 155,785.48 : x
  2. Step 2: Convert to fraction form
    270,502.74/373,321.81 = 155,785.48/x
  3. Step 3: Cross multiply
    270,502.74x = 373,321.81 × 155,785.48
  4. Step 4: Simplify right side
    270,502.74x = 58,158,116,626.75
  5. Step 5: Solve for x
    x = 58,158,116,626.75/270,502.74
  6. Step 6: Final answer
    x = 215,000.10

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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.