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Finding the Fourth Proportional to 116,067.20, 174,133.20 and 56,904.80

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Solution

The fourth proportional to 116,067.20, 174,133.20 and 56,904.80 is: 85,373.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,067.20 : 174,133.20 = 56,904.80 : x
  2. Step 2: Convert to fraction form
    116,067.20/174,133.20 = 56,904.80/x
  3. Step 3: Cross multiply
    116,067.20x = 174,133.20 × 56,904.80
  4. Step 4: Simplify right side
    116,067.20x = 9,909,014,919.36
  5. Step 5: Solve for x
    x = 9,909,014,919.36/116,067.20
  6. Step 6: Final answer
    x = 85,373.08

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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.