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Finding the Fourth Proportional to 342,890.10, 514,355.31 and 132,529.14

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Solution

The fourth proportional to 342,890.10, 514,355.31 and 132,529.14 is: 198,801.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,890.10 : 514,355.31 = 132,529.14 : x
  2. Step 2: Convert to fraction form
    342,890.10/514,355.31 = 132,529.14/x
  3. Step 3: Cross multiply
    342,890.10x = 514,355.31 × 132,529.14
  4. Step 4: Simplify right side
    342,890.10x = 68,167,066,888.73
  5. Step 5: Solve for x
    x = 68,167,066,888.73/342,890.10
  6. Step 6: Final answer
    x = 198,801.50

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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.