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Finding the Fourth Proportional to 112,049, 154,630.86 and 61,751.24

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Solution

The fourth proportional to 112,049, 154,630.86 and 61,751.24 is: 85,218.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,049 : 154,630.86 = 61,751.24 : x
  2. Step 2: Convert to fraction form
    112,049/154,630.86 = 61,751.24/x
  3. Step 3: Cross multiply
    112,049x = 154,630.86 × 61,751.24
  4. Step 4: Simplify right side
    112,049x = 9,548,647,347.27
  5. Step 5: Solve for x
    x = 9,548,647,347.27/112,049
  6. Step 6: Final answer
    x = 85,218.50

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1.5x scale

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.