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Finding the Fourth Proportional to 117,308.70, 175,961.40 and 28,562.40

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Solution

The fourth proportional to 117,308.70, 175,961.40 and 28,562.40 is: 42,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,308.70 : 175,961.40 = 28,562.40 : x
  2. Step 2: Convert to fraction form
    117,308.70/175,961.40 = 28,562.40/x
  3. Step 3: Cross multiply
    117,308.70x = 175,961.40 × 28,562.40
  4. Step 4: Simplify right side
    117,308.70x = 5,025,879,891.36
  5. Step 5: Solve for x
    x = 5,025,879,891.36/117,308.70
  6. Step 6: Final answer
    x = 42,843.20

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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.