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Finding the Fourth Proportional to 112,469.32, 168,699.66 and 28,229.32

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Solution

The fourth proportional to 112,469.32, 168,699.66 and 28,229.32 is: 42,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,469.32 : 168,699.66 = 28,229.32 : x
  2. Step 2: Convert to fraction form
    112,469.32/168,699.66 = 28,229.32/x
  3. Step 3: Cross multiply
    112,469.32x = 168,699.66 × 28,229.32
  4. Step 4: Simplify right side
    112,469.32x = 4,762,276,686.03
  5. Step 5: Solve for x
    x = 4,762,276,686.03/112,469.32
  6. Step 6: Final answer
    x = 42,342.90

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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.