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Finding the Fourth Proportional to 443,589.64, 665,647.98 and 163,303.72

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Solution

The fourth proportional to 443,589.64, 665,647.98 and 163,303.72 is: 245,052.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,589.64 : 665,647.98 = 163,303.72 : x
  2. Step 2: Convert to fraction form
    443,589.64/665,647.98 = 163,303.72/x
  3. Step 3: Cross multiply
    443,589.64x = 665,647.98 × 163,303.72
  4. Step 4: Simplify right side
    443,589.64x = 108,702,791,344.49
  5. Step 5: Solve for x
    x = 108,702,791,344.49/443,589.64
  6. Step 6: Final answer
    x = 245,052.59

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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.