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Finding the Fourth Proportional to 216,651.35, 324,911.40 and 58,859.30

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Solution

The fourth proportional to 216,651.35, 324,911.40 and 58,859.30 is: 88,271.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,651.35 : 324,911.40 = 58,859.30 : x
  2. Step 2: Convert to fraction form
    216,651.35/324,911.40 = 58,859.30/x
  3. Step 3: Cross multiply
    216,651.35x = 324,911.40 × 58,859.30
  4. Step 4: Simplify right side
    216,651.35x = 19,124,055,941.46
  5. Step 5: Solve for x
    x = 19,124,055,941.46/216,651.35
  6. Step 6: Final answer
    x = 88,271.12

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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.