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Finding the Fourth Proportional to 661,466.40, 992,197.67 and 181,694.67

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Solution

The fourth proportional to 661,466.40, 992,197.67 and 181,694.67 is: 272,541.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,466.40 : 992,197.67 = 181,694.67 : x
  2. Step 2: Convert to fraction form
    661,466.40/992,197.67 = 181,694.67/x
  3. Step 3: Cross multiply
    661,466.40x = 992,197.67 × 181,694.67
  4. Step 4: Simplify right side
    661,466.40x = 180,277,023,596.20
  5. Step 5: Solve for x
    x = 180,277,023,596.20/661,466.40
  6. Step 6: Final answer
    x = 272,541.47

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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.