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Finding the Fourth Proportional to 111,334.96, 153,651.98 and 61,043.68

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Solution

The fourth proportional to 111,334.96, 153,651.98 and 61,043.68 is: 84,245.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,334.96 : 153,651.98 = 61,043.68 : x
  2. Step 2: Convert to fraction form
    111,334.96/153,651.98 = 61,043.68/x
  3. Step 3: Cross multiply
    111,334.96x = 153,651.98 × 61,043.68
  4. Step 4: Simplify right side
    111,334.96x = 9,379,482,298.49
  5. Step 5: Solve for x
    x = 9,379,482,298.49/111,334.96
  6. Step 6: Final answer
    x = 84,245.62

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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.