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Finding the Fourth Proportional to 69,719.61, 96,291.41 and 53,994.27

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Solution

The fourth proportional to 69,719.61, 96,291.41 and 53,994.27 is: 74,572.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,719.61 : 96,291.41 = 53,994.27 : x
  2. Step 2: Convert to fraction form
    69,719.61/96,291.41 = 53,994.27/x
  3. Step 3: Cross multiply
    69,719.61x = 96,291.41 × 53,994.27
  4. Step 4: Simplify right side
    69,719.61x = 5,199,184,120.25
  5. Step 5: Solve for x
    x = 5,199,184,120.25/69,719.61
  6. Step 6: Final answer
    x = 74,572.77

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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.