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Finding the Fourth Proportional to 118,709.52, 178,073.50 and 34,471.05

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Solution

The fourth proportional to 118,709.52, 178,073.50 and 34,471.05 is: 51,709.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,709.52 : 178,073.50 = 34,471.05 : x
  2. Step 2: Convert to fraction form
    118,709.52/178,073.50 = 34,471.05/x
  3. Step 3: Cross multiply
    118,709.52x = 178,073.50 × 34,471.05
  4. Step 4: Simplify right side
    118,709.52x = 6,138,380,522.18
  5. Step 5: Solve for x
    x = 6,138,380,522.18/118,709.52
  6. Step 6: Final answer
    x = 51,709.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.