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Finding the Fourth Proportional to 112,919.50, 169,390.59 and 29,813.50

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Solution

The fourth proportional to 112,919.50, 169,390.59 and 29,813.50 is: 44,723.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,919.50 : 169,390.59 = 29,813.50 : x
  2. Step 2: Convert to fraction form
    112,919.50/169,390.59 = 29,813.50/x
  3. Step 3: Cross multiply
    112,919.50x = 169,390.59 × 29,813.50
  4. Step 4: Simplify right side
    112,919.50x = 5,050,126,354.97
  5. Step 5: Solve for x
    x = 5,050,126,354.97/112,919.50
  6. Step 6: Final answer
    x = 44,723.24

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1.5x scale

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.