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Finding the Fourth Proportional to 342,644.10, 513,998.55 and 93,326.10

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Solution

The fourth proportional to 342,644.10, 513,998.55 and 93,326.10 is: 139,997.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,644.10 : 513,998.55 = 93,326.10 : x
  2. Step 2: Convert to fraction form
    342,644.10/513,998.55 = 93,326.10/x
  3. Step 3: Cross multiply
    342,644.10x = 513,998.55 × 93,326.10
  4. Step 4: Simplify right side
    342,644.10x = 47,969,480,077.16
  5. Step 5: Solve for x
    x = 47,969,480,077.16/342,644.10
  6. Step 6: Final answer
    x = 139,997.97

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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.