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Finding the Fourth Proportional to 661,467.40, 992,199.16 and 181,695.67

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Solution

The fourth proportional to 661,467.40, 992,199.16 and 181,695.67 is: 272,542.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,467.40 : 992,199.16 = 181,695.67 : x
  2. Step 2: Convert to fraction form
    661,467.40/992,199.16 = 181,695.67/x
  3. Step 3: Cross multiply
    661,467.40x = 992,199.16 × 181,695.67
  4. Step 4: Simplify right side
    661,467.40x = 180,278,291,149.64
  5. Step 5: Solve for x
    x = 180,278,291,149.64/661,467.40
  6. Step 6: Final answer
    x = 272,542.97

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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.