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Finding the Fourth Proportional to 14,340,505.20, 20,091,637.20 and 14,340,505.20

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Solution

The fourth proportional to 14,340,505.20, 20,091,637.20 and 14,340,505.20 is: 20,091,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,340,505.20 : 20,091,637.20 = 14,340,505.20 : x
  2. Step 2: Convert to fraction form
    14,340,505.20/20,091,637.20 = 14,340,505.20/x
  3. Step 3: Cross multiply
    14,340,505.20x = 20,091,637.20 × 14,340,505.20
  4. Step 4: Simplify right side
    14,340,505.20x = 288,124,227,743,113.44
  5. Step 5: Solve for x
    x = 288,124,227,743,113.44/14,340,505.20
  6. Step 6: Final answer
    x = 20,091,637.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.