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Finding the Fourth Proportional to 172,904.96, 238,604.10 and 96,426.38

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Solution

The fourth proportional to 172,904.96, 238,604.10 and 96,426.38 is: 133,065.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,904.96 : 238,604.10 = 96,426.38 : x
  2. Step 2: Convert to fraction form
    172,904.96/238,604.10 = 96,426.38/x
  3. Step 3: Cross multiply
    172,904.96x = 238,604.10 × 96,426.38
  4. Step 4: Simplify right side
    172,904.96x = 23,007,729,851.07
  5. Step 5: Solve for x
    x = 23,007,729,851.07/172,904.96
  6. Step 6: Final answer
    x = 133,065.76

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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.