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Finding the Fourth Proportional to 109,058.50, 150,514.74 and 61,321.07

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Solution

The fourth proportional to 109,058.50, 150,514.74 and 61,321.07 is: 84,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,058.50 : 150,514.74 = 61,321.07 : x
  2. Step 2: Convert to fraction form
    109,058.50/150,514.74 = 61,321.07/x
  3. Step 3: Cross multiply
    109,058.50x = 150,514.74 × 61,321.07
  4. Step 4: Simplify right side
    109,058.50x = 9,229,724,437.21
  5. Step 5: Solve for x
    x = 9,229,724,437.21/109,058.50
  6. Step 6: Final answer
    x = 84,630.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.