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Finding the Fourth Proportional to 443,809.86, 665,649.18 and 163,261.50

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Solution

The fourth proportional to 443,809.86, 665,649.18 and 163,261.50 is: 244,868.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,809.86 : 665,649.18 = 163,261.50 : x
  2. Step 2: Convert to fraction form
    443,809.86/665,649.18 = 163,261.50/x
  3. Step 3: Cross multiply
    443,809.86x = 665,649.18 × 163,261.50
  4. Step 4: Simplify right side
    443,809.86x = 108,674,883,600.57
  5. Step 5: Solve for x
    x = 108,674,883,600.57/443,809.86
  6. Step 6: Final answer
    x = 244,868.11

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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.