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Finding the Fourth Proportional to 112,241.86, 154,895.74 and 61,255.03

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Solution

The fourth proportional to 112,241.86, 154,895.74 and 61,255.03 is: 84,533.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,241.86 : 154,895.74 = 61,255.03 : x
  2. Step 2: Convert to fraction form
    112,241.86/154,895.74 = 61,255.03/x
  3. Step 3: Cross multiply
    112,241.86x = 154,895.74 × 61,255.03
  4. Step 4: Simplify right side
    112,241.86x = 9,488,143,200.57
  5. Step 5: Solve for x
    x = 9,488,143,200.57/112,241.86
  6. Step 6: Final answer
    x = 84,533.02

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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.