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Finding the Fourth Proportional to 343,297.79, 514,860.51 and 163,272.12

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Solution

The fourth proportional to 343,297.79, 514,860.51 and 163,272.12 is: 244,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,297.79 : 514,860.51 = 163,272.12 : x
  2. Step 2: Convert to fraction form
    343,297.79/514,860.51 = 163,272.12/x
  3. Step 3: Cross multiply
    343,297.79x = 514,860.51 × 163,272.12
  4. Step 4: Simplify right side
    343,297.79x = 84,062,366,971.98
  5. Step 5: Solve for x
    x = 84,062,366,971.98/343,297.79
  6. Step 6: Final answer
    x = 244,867.20

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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.