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Finding the Fourth Proportional to 192,443.48, 265,399.92 and 120,830.12

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Solution

The fourth proportional to 192,443.48, 265,399.92 and 120,830.12 is: 166,637.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,443.48 : 265,399.92 = 120,830.12 : x
  2. Step 2: Convert to fraction form
    192,443.48/265,399.92 = 120,830.12/x
  3. Step 3: Cross multiply
    192,443.48x = 265,399.92 × 120,830.12
  4. Step 4: Simplify right side
    192,443.48x = 32,068,304,181.59
  5. Step 5: Solve for x
    x = 32,068,304,181.59/192,443.48
  6. Step 6: Final answer
    x = 166,637.52

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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.