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Finding the Fourth Proportional to 326,697.35, 490,064.45 and 116,335.31

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Solution

The fourth proportional to 326,697.35, 490,064.45 and 116,335.31 is: 174,509.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,697.35 : 490,064.45 = 116,335.31 : x
  2. Step 2: Convert to fraction form
    326,697.35/490,064.45 = 116,335.31/x
  3. Step 3: Cross multiply
    326,697.35x = 490,064.45 × 116,335.31
  4. Step 4: Simplify right side
    326,697.35x = 57,011,796,678.73
  5. Step 5: Solve for x
    x = 57,011,796,678.73/326,697.35
  6. Step 6: Final answer
    x = 174,509.52

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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.