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Finding the Fourth Proportional to 10,959,859.90, 15,368,998.10 and 10,959,859.90

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Solution

The fourth proportional to 10,959,859.90, 15,368,998.10 and 10,959,859.90 is: 15,368,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959,859.90 : 15,368,998.10 = 10,959,859.90 : x
  2. Step 2: Convert to fraction form
    10,959,859.90/15,368,998.10 = 10,959,859.90/x
  3. Step 3: Cross multiply
    10,959,859.90x = 15,368,998.10 × 10,959,859.90
  4. Step 4: Simplify right side
    10,959,859.90x = 168,442,065,979,366.19
  5. Step 5: Solve for x
    x = 168,442,065,979,366.19/10,959,859.90
  6. Step 6: Final answer
    x = 15,368,998.10

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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.