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Finding the Fourth Proportional to 237,805.20, 356,405.40 and 97,405.20

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Solution

The fourth proportional to 237,805.20, 356,405.40 and 97,405.20 is: 145,983.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,805.20 : 356,405.40 = 97,405.20 : x
  2. Step 2: Convert to fraction form
    237,805.20/356,405.40 = 97,405.20/x
  3. Step 3: Cross multiply
    237,805.20x = 356,405.40 × 97,405.20
  4. Step 4: Simplify right side
    237,805.20x = 34,715,739,268.08
  5. Step 5: Solve for x
    x = 34,715,739,268.08/237,805.20
  6. Step 6: Final answer
    x = 145,983.94

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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.