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Finding the Fourth Proportional to 340,867.92, 511,192.80 and 113,113.20

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Solution

The fourth proportional to 340,867.92, 511,192.80 and 113,113.20 is: 169,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,867.92 : 511,192.80 = 113,113.20 : x
  2. Step 2: Convert to fraction form
    340,867.92/511,192.80 = 113,113.20/x
  3. Step 3: Cross multiply
    340,867.92x = 511,192.80 × 113,113.20
  4. Step 4: Simplify right side
    340,867.92x = 57,822,653,424.96
  5. Step 5: Solve for x
    x = 57,822,653,424.96/340,867.92
  6. Step 6: Final answer
    x = 169,633.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.