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Finding the Fourth Proportional to 194,711.10, 272,989.20 and 194,711.10

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Solution

The fourth proportional to 194,711.10, 272,989.20 and 194,711.10 is: 272,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,711.10 : 272,989.20 = 194,711.10 : x
  2. Step 2: Convert to fraction form
    194,711.10/272,989.20 = 194,711.10/x
  3. Step 3: Cross multiply
    194,711.10x = 272,989.20 × 194,711.10
  4. Step 4: Simplify right side
    194,711.10x = 53,154,027,420.12
  5. Step 5: Solve for x
    x = 53,154,027,420.12/194,711.10
  6. Step 6: Final answer
    x = 272,989.20

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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.