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Finding the Fourth Proportional to 317,091.52, 437,585.76 and 173,856.64

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Solution

The fourth proportional to 317,091.52, 437,585.76 and 173,856.64 is: 239,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,091.52 : 437,585.76 = 173,856.64 : x
  2. Step 2: Convert to fraction form
    317,091.52/437,585.76 = 173,856.64/x
  3. Step 3: Cross multiply
    317,091.52x = 437,585.76 × 173,856.64
  4. Step 4: Simplify right side
    317,091.52x = 76,077,189,945.45
  5. Step 5: Solve for x
    x = 76,077,189,945.45/317,091.52
  6. Step 6: Final answer
    x = 239,921.87

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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.