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Finding the Fourth Proportional to 148,896.90, 207,989.10 and 148,896.90

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Solution

The fourth proportional to 148,896.90, 207,989.10 and 148,896.90 is: 207,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,896.90 : 207,989.10 = 148,896.90 : x
  2. Step 2: Convert to fraction form
    148,896.90/207,989.10 = 148,896.90/x
  3. Step 3: Cross multiply
    148,896.90x = 207,989.10 × 148,896.90
  4. Step 4: Simplify right side
    148,896.90x = 30,968,932,223.79
  5. Step 5: Solve for x
    x = 30,968,932,223.79/148,896.90
  6. Step 6: Final answer
    x = 207,989.10

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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.