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Finding the Fourth Proportional to 319,331.52, 479,067.60 and 94,709.52

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Solution

The fourth proportional to 319,331.52, 479,067.60 and 94,709.52 is: 142,085.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,331.52 : 479,067.60 = 94,709.52 : x
  2. Step 2: Convert to fraction form
    319,331.52/479,067.60 = 94,709.52/x
  3. Step 3: Cross multiply
    319,331.52x = 479,067.60 × 94,709.52
  4. Step 4: Simplify right side
    319,331.52x = 45,372,262,443.55
  5. Step 5: Solve for x
    x = 45,372,262,443.55/319,331.52
  6. Step 6: Final answer
    x = 142,085.14

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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.