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Finding the Fourth Proportional to 139,347.54, 192,456.54 and 94,212.18

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Solution

The fourth proportional to 139,347.54, 192,456.54 and 94,212.18 is: 130,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,347.54 : 192,456.54 = 94,212.18 : x
  2. Step 2: Convert to fraction form
    139,347.54/192,456.54 = 94,212.18/x
  3. Step 3: Cross multiply
    139,347.54x = 192,456.54 × 94,212.18
  4. Step 4: Simplify right side
    139,347.54x = 18,131,750,188.66
  5. Step 5: Solve for x
    x = 18,131,750,188.66/139,347.54
  6. Step 6: Final answer
    x = 130,118.91

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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.