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Finding the Fourth Proportional to 272,045,651.20, 408,068,476.80 and 272,045,651.20

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Solution

The fourth proportional to 272,045,651.20, 408,068,476.80 and 272,045,651.20 is: 408,068,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,045,651.20 : 408,068,476.80 = 272,045,651.20 : x
  2. Step 2: Convert to fraction form
    272,045,651.20/408,068,476.80 = 272,045,651.20/x
  3. Step 3: Cross multiply
    272,045,651.20x = 408,068,476.80 × 272,045,651.20
  4. Step 4: Simplify right side
    272,045,651.20x = 111,013,254,505,248,096
  5. Step 5: Solve for x
    x = 111,013,254,505,248,096/272,045,651.20
  6. Step 6: Final answer
    x = 408,068,476.80

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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.