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Finding the Fourth Proportional to 74,336.64, 111,544.64 and 34,894.10

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Solution

The fourth proportional to 74,336.64, 111,544.64 and 34,894.10 is: 52,359.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,336.64 : 111,544.64 = 34,894.10 : x
  2. Step 2: Convert to fraction form
    74,336.64/111,544.64 = 34,894.10/x
  3. Step 3: Cross multiply
    74,336.64x = 111,544.64 × 34,894.10
  4. Step 4: Simplify right side
    74,336.64x = 3,892,249,822.62
  5. Step 5: Solve for x
    x = 3,892,249,822.62/74,336.64
  6. Step 6: Final answer
    x = 52,359.78

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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.