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Finding the Fourth Proportional to 115,998.88, 173,998.32 and 28,446.88

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Solution

The fourth proportional to 115,998.88, 173,998.32 and 28,446.88 is: 42,670.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,998.88 : 173,998.32 = 28,446.88 : x
  2. Step 2: Convert to fraction form
    115,998.88/173,998.32 = 28,446.88/x
  3. Step 3: Cross multiply
    115,998.88x = 173,998.32 × 28,446.88
  4. Step 4: Simplify right side
    115,998.88x = 4,949,709,329.24
  5. Step 5: Solve for x
    x = 4,949,709,329.24/115,998.88
  6. Step 6: Final answer
    x = 42,670.32

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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.