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Finding the Fourth Proportional to 343,083.66, 514,675.11 and 129,793.74

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Solution

The fourth proportional to 343,083.66, 514,675.11 and 129,793.74 is: 194,709.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,083.66 : 514,675.11 = 129,793.74 : x
  2. Step 2: Convert to fraction form
    343,083.66/514,675.11 = 129,793.74/x
  3. Step 3: Cross multiply
    343,083.66x = 514,675.11 × 129,793.74
  4. Step 4: Simplify right side
    343,083.66x = 66,801,607,411.81
  5. Step 5: Solve for x
    x = 66,801,607,411.81/343,083.66
  6. Step 6: Final answer
    x = 194,709.38

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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.