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Finding the Fourth Proportional to 114,620.60, 171,930.90 and 31,514.60

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Solution

The fourth proportional to 114,620.60, 171,930.90 and 31,514.60 is: 47,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,620.60 : 171,930.90 = 31,514.60 : x
  2. Step 2: Convert to fraction form
    114,620.60/171,930.90 = 31,514.60/x
  3. Step 3: Cross multiply
    114,620.60x = 171,930.90 × 31,514.60
  4. Step 4: Simplify right side
    114,620.60x = 5,418,333,541.14
  5. Step 5: Solve for x
    x = 5,418,333,541.14/114,620.60
  6. Step 6: Final answer
    x = 47,271.90

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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.