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Finding the Fourth Proportional to 349,139.52, 523,739.62 and 96,420.32

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Solution

The fourth proportional to 349,139.52, 523,739.62 and 96,420.32 is: 144,638.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,139.52 : 523,739.62 = 96,420.32 : x
  2. Step 2: Convert to fraction form
    349,139.52/523,739.62 = 96,420.32/x
  3. Step 3: Cross multiply
    349,139.52x = 523,739.62 × 96,420.32
  4. Step 4: Simplify right side
    349,139.52x = 50,499,141,757.08
  5. Step 5: Solve for x
    x = 50,499,141,757.08/349,139.52
  6. Step 6: Final answer
    x = 144,638.86

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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.