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Finding the Fourth Proportional to 443,583.38, 665,565.74 and 144,155.74

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Solution

The fourth proportional to 443,583.38, 665,565.74 and 144,155.74 is: 216,295.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,583.38 : 665,565.74 = 144,155.74 : x
  2. Step 2: Convert to fraction form
    443,583.38/665,565.74 = 144,155.74/x
  3. Step 3: Cross multiply
    443,583.38x = 665,565.74 × 144,155.74
  4. Step 4: Simplify right side
    443,583.38x = 95,945,121,768.35
  5. Step 5: Solve for x
    x = 95,945,121,768.35/443,583.38
  6. Step 6: Final answer
    x = 216,295.57

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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.