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Finding the Fourth Proportional to 111,097.48, 166,646.22 and 61,151.87

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Solution

The fourth proportional to 111,097.48, 166,646.22 and 61,151.87 is: 91,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,097.48 : 166,646.22 = 61,151.87 : x
  2. Step 2: Convert to fraction form
    111,097.48/166,646.22 = 61,151.87/x
  3. Step 3: Cross multiply
    111,097.48x = 166,646.22 × 61,151.87
  4. Step 4: Simplify right side
    111,097.48x = 10,190,727,148.20
  5. Step 5: Solve for x
    x = 10,190,727,148.20/111,097.48
  6. Step 6: Final answer
    x = 91,727.80

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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.