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Finding the Fourth Proportional to 247,181.25, 341,146.50 and 156,545.64

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Solution

The fourth proportional to 247,181.25, 341,146.50 and 156,545.64 is: 216,056.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,181.25 : 341,146.50 = 156,545.64 : x
  2. Step 2: Convert to fraction form
    247,181.25/341,146.50 = 156,545.64/x
  3. Step 3: Cross multiply
    247,181.25x = 341,146.50 × 156,545.64
  4. Step 4: Simplify right side
    247,181.25x = 53,404,997,176.26
  5. Step 5: Solve for x
    x = 53,404,997,176.26/247,181.25
  6. Step 6: Final answer
    x = 216,056.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.