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Finding the Fourth Proportional to 272,951.64, 409,146.84 and 104,432.40

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Solution

The fourth proportional to 272,951.64, 409,146.84 and 104,432.40 is: 156,541.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,951.64 : 409,146.84 = 104,432.40 : x
  2. Step 2: Convert to fraction form
    272,951.64/409,146.84 = 104,432.40/x
  3. Step 3: Cross multiply
    272,951.64x = 409,146.84 × 104,432.40
  4. Step 4: Simplify right side
    272,951.64x = 42,728,186,453.62
  5. Step 5: Solve for x
    x = 42,728,186,453.62/272,951.64
  6. Step 6: Final answer
    x = 156,541.23

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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.