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Finding the Fourth Proportional to 313,298.19, 432,359.19 and 170,057.88

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Solution

The fourth proportional to 313,298.19, 432,359.19 and 170,057.88 is: 234,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,298.19 : 432,359.19 = 170,057.88 : x
  2. Step 2: Convert to fraction form
    313,298.19/432,359.19 = 170,057.88/x
  3. Step 3: Cross multiply
    313,298.19x = 432,359.19 × 170,057.88
  4. Step 4: Simplify right side
    313,298.19x = 73,526,087,249.92
  5. Step 5: Solve for x
    x = 73,526,087,249.92/313,298.19
  6. Step 6: Final answer
    x = 234,684.05

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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.