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Finding the Fourth Proportional to 443,595.79, 665,584.31 and 144,168.13

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Solution

The fourth proportional to 443,595.79, 665,584.31 and 144,168.13 is: 216,314.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,595.79 : 665,584.31 = 144,168.13 : x
  2. Step 2: Convert to fraction form
    443,595.79/665,584.31 = 144,168.13/x
  3. Step 3: Cross multiply
    443,595.79x = 665,584.31 × 144,168.13
  4. Step 4: Simplify right side
    443,595.79x = 95,956,044,609.20
  5. Step 5: Solve for x
    x = 95,956,044,609.20/443,595.79
  6. Step 6: Final answer
    x = 216,314.15

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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.