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Finding the Fourth Proportional to 96,419.60, 133,055.16 and 56,134.52

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Solution

The fourth proportional to 96,419.60, 133,055.16 and 56,134.52 is: 77,463.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,419.60 : 133,055.16 = 56,134.52 : x
  2. Step 2: Convert to fraction form
    96,419.60/133,055.16 = 56,134.52/x
  3. Step 3: Cross multiply
    96,419.60x = 133,055.16 × 56,134.52
  4. Step 4: Simplify right side
    96,419.60x = 7,468,987,540.12
  5. Step 5: Solve for x
    x = 7,468,987,540.12/96,419.60
  6. Step 6: Final answer
    x = 77,463.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.