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Finding the Fourth Proportional to 270,970.92, 373,938.66 and 156,249

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Solution

The fourth proportional to 270,970.92, 373,938.66 and 156,249 is: 215,622.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,970.92 : 373,938.66 = 156,249 : x
  2. Step 2: Convert to fraction form
    270,970.92/373,938.66 = 156,249/x
  3. Step 3: Cross multiply
    270,970.92x = 373,938.66 × 156,249
  4. Step 4: Simplify right side
    270,970.92x = 58,427,541,686.34
  5. Step 5: Solve for x
    x = 58,427,541,686.34/270,970.92
  6. Step 6: Final answer
    x = 215,622.92

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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.