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Finding the Fourth Proportional to 384,814.67, 577,307.18 and 132,089.49

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Solution

The fourth proportional to 384,814.67, 577,307.18 and 132,089.49 is: 198,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,814.67 : 577,307.18 = 132,089.49 : x
  2. Step 2: Convert to fraction form
    384,814.67/577,307.18 = 132,089.49/x
  3. Step 3: Cross multiply
    384,814.67x = 577,307.18 × 132,089.49
  4. Step 4: Simplify right side
    384,814.67x = 76,256,211,309.76
  5. Step 5: Solve for x
    x = 76,256,211,309.76/384,814.67
  6. Step 6: Final answer
    x = 198,163.48

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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.