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Finding the Fourth Proportional to 216,315.42, 324,020.53 and 173,966.59

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Solution

The fourth proportional to 216,315.42, 324,020.53 and 173,966.59 is: 260,585.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,315.42 : 324,020.53 = 173,966.59 : x
  2. Step 2: Convert to fraction form
    216,315.42/324,020.53 = 173,966.59/x
  3. Step 3: Cross multiply
    216,315.42x = 324,020.53 × 173,966.59
  4. Step 4: Simplify right side
    216,315.42x = 56,368,746,694.09
  5. Step 5: Solve for x
    x = 56,368,746,694.09/216,315.42
  6. Step 6: Final answer
    x = 260,585.89

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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.