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Finding the Fourth Proportional to 114,690.72, 172,076.16 and 44,619.12

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Solution

The fourth proportional to 114,690.72, 172,076.16 and 44,619.12 is: 66,944.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,690.72 : 172,076.16 = 44,619.12 : x
  2. Step 2: Convert to fraction form
    114,690.72/172,076.16 = 44,619.12/x
  3. Step 3: Cross multiply
    114,690.72x = 172,076.16 × 44,619.12
  4. Step 4: Simplify right side
    114,690.72x = 7,677,886,832.18
  5. Step 5: Solve for x
    x = 7,677,886,832.18/114,690.72
  6. Step 6: Final answer
    x = 66,944.27

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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.