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Finding the Fourth Proportional to 192,658.32, 265,868.40 and 107,775.36

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Solution

The fourth proportional to 192,658.32, 265,868.40 and 107,775.36 is: 148,729.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,658.32 : 265,868.40 = 107,775.36 : x
  2. Step 2: Convert to fraction form
    192,658.32/265,868.40 = 107,775.36/x
  3. Step 3: Cross multiply
    192,658.32x = 265,868.40 × 107,775.36
  4. Step 4: Simplify right side
    192,658.32x = 28,654,062,522.62
  5. Step 5: Solve for x
    x = 28,654,062,522.62/192,658.32
  6. Step 6: Final answer
    x = 148,729.95

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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.