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Finding the Fourth Proportional to 326,998,900.80, 490,593,027.06 and 96,973,521.30

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Solution

The fourth proportional to 326,998,900.80, 490,593,027.06 and 96,973,521.30 is: 145,488,358.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,998,900.80 : 490,593,027.06 = 96,973,521.30 : x
  2. Step 2: Convert to fraction form
    326,998,900.80/490,593,027.06 = 96,973,521.30/x
  3. Step 3: Cross multiply
    326,998,900.80x = 490,593,027.06 × 96,973,521.30
  4. Step 4: Simplify right side
    326,998,900.80x = 47,574,533,359,234,384
  5. Step 5: Solve for x
    x = 47,574,533,359,234,384/326,998,900.80
  6. Step 6: Final answer
    x = 145,488,358.65

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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.