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Finding the Fourth Proportional to 310,932.57, 466,103.61 and 121,514.45

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Solution

The fourth proportional to 310,932.57, 466,103.61 and 121,514.45 is: 182,156.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,932.57 : 466,103.61 = 121,514.45 : x
  2. Step 2: Convert to fraction form
    310,932.57/466,103.61 = 121,514.45/x
  3. Step 3: Cross multiply
    310,932.57x = 466,103.61 × 121,514.45
  4. Step 4: Simplify right side
    310,932.57x = 56,638,321,481.65
  5. Step 5: Solve for x
    x = 56,638,321,481.65/310,932.57
  6. Step 6: Final answer
    x = 182,156.28

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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.