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Finding the Fourth Proportional to 356,442.65, 534,331.77 and 178,742.01

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Solution

The fourth proportional to 356,442.65, 534,331.77 and 178,742.01 is: 267,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,442.65 : 534,331.77 = 178,742.01 : x
  2. Step 2: Convert to fraction form
    356,442.65/534,331.77 = 178,742.01/x
  3. Step 3: Cross multiply
    356,442.65x = 534,331.77 × 178,742.01
  4. Step 4: Simplify right side
    356,442.65x = 95,507,534,576.66
  5. Step 5: Solve for x
    x = 95,507,534,576.66/356,442.65
  6. Step 6: Final answer
    x = 267,946.43

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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.