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Finding the Fourth Proportional to 137,749.30, 206,235.15 and 137,749.30

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Solution

The fourth proportional to 137,749.30, 206,235.15 and 137,749.30 is: 206,235.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,749.30 : 206,235.15 = 137,749.30 : x
  2. Step 2: Convert to fraction form
    137,749.30/206,235.15 = 137,749.30/x
  3. Step 3: Cross multiply
    137,749.30x = 206,235.15 × 137,749.30
  4. Step 4: Simplify right side
    137,749.30x = 28,408,747,547.90
  5. Step 5: Solve for x
    x = 28,408,747,547.90/137,749.30
  6. Step 6: Final answer
    x = 206,235.15

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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.