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Finding the Fourth Proportional to 131,602.88, 197,491.80 and 61,487.66

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Solution

The fourth proportional to 131,602.88, 197,491.80 and 61,487.66 is: 92,272.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,602.88 : 197,491.80 = 61,487.66 : x
  2. Step 2: Convert to fraction form
    131,602.88/197,491.80 = 61,487.66/x
  3. Step 3: Cross multiply
    131,602.88x = 197,491.80 × 61,487.66
  4. Step 4: Simplify right side
    131,602.88x = 12,143,308,651.19
  5. Step 5: Solve for x
    x = 12,143,308,651.19/131,602.88
  6. Step 6: Final answer
    x = 92,272.36

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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.