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Finding the Fourth Proportional to 112,040.64, 168,087.06 and 49,716

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Solution

The fourth proportional to 112,040.64, 168,087.06 and 49,716 is: 74,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,040.64 : 168,087.06 = 49,716 : x
  2. Step 2: Convert to fraction form
    112,040.64/168,087.06 = 49,716/x
  3. Step 3: Cross multiply
    112,040.64x = 168,087.06 × 49,716
  4. Step 4: Simplify right side
    112,040.64x = 8,356,616,274.96
  5. Step 5: Solve for x
    x = 8,356,616,274.96/112,040.64
  6. Step 6: Final answer
    x = 74,585.58

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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.