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Finding the Fourth Proportional to 220,707.54, 304,732.71 and 172,364.04

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Solution

The fourth proportional to 220,707.54, 304,732.71 and 172,364.04 is: 237,984.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,707.54 : 304,732.71 = 172,364.04 : x
  2. Step 2: Convert to fraction form
    220,707.54/304,732.71 = 172,364.04/x
  3. Step 3: Cross multiply
    220,707.54x = 304,732.71 × 172,364.04
  4. Step 4: Simplify right side
    220,707.54x = 52,524,961,015.75
  5. Step 5: Solve for x
    x = 52,524,961,015.75/220,707.54
  6. Step 6: Final answer
    x = 237,984.44

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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.