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Finding the Fourth Proportional to 353,556.91, 530,401.34 and 117,066.07

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Solution

The fourth proportional to 353,556.91, 530,401.34 and 117,066.07 is: 175,620.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,556.91 : 530,401.34 = 117,066.07 : x
  2. Step 2: Convert to fraction form
    353,556.91/530,401.34 = 117,066.07/x
  3. Step 3: Cross multiply
    353,556.91x = 530,401.34 × 117,066.07
  4. Step 4: Simplify right side
    353,556.91x = 62,092,000,396.53
  5. Step 5: Solve for x
    x = 62,092,000,396.53/353,556.91
  6. Step 6: Final answer
    x = 175,620.95

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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.