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Finding the Fourth Proportional to 137,812.60, 206,427.30 and 137,812.60

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Solution

The fourth proportional to 137,812.60, 206,427.30 and 137,812.60 is: 206,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,812.60 : 206,427.30 = 137,812.60 : x
  2. Step 2: Convert to fraction form
    137,812.60/206,427.30 = 137,812.60/x
  3. Step 3: Cross multiply
    137,812.60x = 206,427.30 × 137,812.60
  4. Step 4: Simplify right side
    137,812.60x = 28,448,282,923.98
  5. Step 5: Solve for x
    x = 28,448,282,923.98/137,812.60
  6. Step 6: Final answer
    x = 206,427.30

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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.