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Finding the Fourth Proportional to 10,109,716.20, 15,164,574.30 and 10,109,716.20

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Solution

The fourth proportional to 10,109,716.20, 15,164,574.30 and 10,109,716.20 is: 15,164,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,716.20 : 15,164,574.30 = 10,109,716.20 : x
  2. Step 2: Convert to fraction form
    10,109,716.20/15,164,574.30 = 10,109,716.20/x
  3. Step 3: Cross multiply
    10,109,716.20x = 15,164,574.30 × 10,109,716.20
  4. Step 4: Simplify right side
    10,109,716.20x = 153,309,542,466,813.66
  5. Step 5: Solve for x
    x = 153,309,542,466,813.66/10,109,716.20
  6. Step 6: Final answer
    x = 15,164,574.30

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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.