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Finding the Fourth Proportional to 131,461.40, 197,192.10 and 131,461.40

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Solution

The fourth proportional to 131,461.40, 197,192.10 and 131,461.40 is: 197,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,461.40 : 197,192.10 = 131,461.40 : x
  2. Step 2: Convert to fraction form
    131,461.40/197,192.10 = 131,461.40/x
  3. Step 3: Cross multiply
    131,461.40x = 197,192.10 × 131,461.40
  4. Step 4: Simplify right side
    131,461.40x = 25,923,149,534.94
  5. Step 5: Solve for x
    x = 25,923,149,534.94/131,461.40
  6. Step 6: Final answer
    x = 197,192.10

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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.