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Finding the Fourth Proportional to 443,244.96, 664,508.88 and 139,484.16

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Solution

The fourth proportional to 443,244.96, 664,508.88 and 139,484.16 is: 209,113.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,244.96 : 664,508.88 = 139,484.16 : x
  2. Step 2: Convert to fraction form
    443,244.96/664,508.88 = 139,484.16/x
  3. Step 3: Cross multiply
    443,244.96x = 664,508.88 × 139,484.16
  4. Step 4: Simplify right side
    443,244.96x = 92,688,462,939.34
  5. Step 5: Solve for x
    x = 92,688,462,939.34/443,244.96
  6. Step 6: Final answer
    x = 209,113.41

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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.