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Finding the Fourth Proportional to 343,060.56, 514,766.16 and 163,349.28

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Solution

The fourth proportional to 343,060.56, 514,766.16 and 163,349.28 is: 245,107.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,060.56 : 514,766.16 = 163,349.28 : x
  2. Step 2: Convert to fraction form
    343,060.56/514,766.16 = 163,349.28/x
  3. Step 3: Cross multiply
    343,060.56x = 514,766.16 × 163,349.28
  4. Step 4: Simplify right side
    343,060.56x = 84,086,681,604.36
  5. Step 5: Solve for x
    x = 84,086,681,604.36/343,060.56
  6. Step 6: Final answer
    x = 245,107.40

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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.