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Finding the Fourth Proportional to 443,596.79, 665,585.81 and 144,169.13

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Solution

The fourth proportional to 443,596.79, 665,585.81 and 144,169.13 is: 216,315.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,596.79 : 665,585.81 = 144,169.13 : x
  2. Step 2: Convert to fraction form
    443,596.79/665,585.81 = 144,169.13/x
  3. Step 3: Cross multiply
    443,596.79x = 665,585.81 × 144,169.13
  4. Step 4: Simplify right side
    443,596.79x = 95,956,926,447.20
  5. Step 5: Solve for x
    x = 95,956,926,447.20/443,596.79
  6. Step 6: Final answer
    x = 216,315.65

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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.