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Finding the Fourth Proportional to 216,263.98, 324,396 and 64,463.42

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Solution

The fourth proportional to 216,263.98, 324,396 and 64,463.42 is: 96,695.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,263.98 : 324,396 = 64,463.42 : x
  2. Step 2: Convert to fraction form
    216,263.98/324,396 = 64,463.42/x
  3. Step 3: Cross multiply
    216,263.98x = 324,396 × 64,463.42
  4. Step 4: Simplify right side
    216,263.98x = 20,911,675,594.32
  5. Step 5: Solve for x
    x = 20,911,675,594.32/216,263.98
  6. Step 6: Final answer
    x = 96,695.14

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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.