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Finding the Fourth Proportional to 168,866.40, 233,233.92 and 134,992.20

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Solution

The fourth proportional to 168,866.40, 233,233.92 and 134,992.20 is: 186,447.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,866.40 : 233,233.92 = 134,992.20 : x
  2. Step 2: Convert to fraction form
    168,866.40/233,233.92 = 134,992.20/x
  3. Step 3: Cross multiply
    168,866.40x = 233,233.92 × 134,992.20
  4. Step 4: Simplify right side
    168,866.40x = 31,484,759,975.42
  5. Step 5: Solve for x
    x = 31,484,759,975.42/168,866.40
  6. Step 6: Final answer
    x = 186,447.75

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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.