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Finding the Fourth Proportional to 112,576.69, 155,354.65 and 61,588.90

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Solution

The fourth proportional to 112,576.69, 155,354.65 and 61,588.90 is: 84,992.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,576.69 : 155,354.65 = 61,588.90 : x
  2. Step 2: Convert to fraction form
    112,576.69/155,354.65 = 61,588.90/x
  3. Step 3: Cross multiply
    112,576.69x = 155,354.65 × 61,588.90
  4. Step 4: Simplify right side
    112,576.69x = 9,568,122,003.39
  5. Step 5: Solve for x
    x = 9,568,122,003.39/112,576.69
  6. Step 6: Final answer
    x = 84,992.04

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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.