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Finding the Fourth Proportional to 172,083.62, 237,409.02 and 126,869.10

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Solution

The fourth proportional to 172,083.62, 237,409.02 and 126,869.10 is: 175,030.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,083.62 : 237,409.02 = 126,869.10 : x
  2. Step 2: Convert to fraction form
    172,083.62/237,409.02 = 126,869.10/x
  3. Step 3: Cross multiply
    172,083.62x = 237,409.02 × 126,869.10
  4. Step 4: Simplify right side
    172,083.62x = 30,119,868,699.28
  5. Step 5: Solve for x
    x = 30,119,868,699.28/172,083.62
  6. Step 6: Final answer
    x = 175,030.43

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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.