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Finding the Fourth Proportional to 443,501.64, 665,514.90 and 163,215.72

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Solution

The fourth proportional to 443,501.64, 665,514.90 and 163,215.72 is: 244,920.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,501.64 : 665,514.90 = 163,215.72 : x
  2. Step 2: Convert to fraction form
    443,501.64/665,514.90 = 163,215.72/x
  3. Step 3: Cross multiply
    443,501.64x = 665,514.90 × 163,215.72
  4. Step 4: Simplify right side
    443,501.64x = 108,622,493,574.23
  5. Step 5: Solve for x
    x = 108,622,493,574.23/443,501.64
  6. Step 6: Final answer
    x = 244,920.16

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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.