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Finding the Fourth Proportional to 112,034.64, 168,078.06 and 49,710

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Solution

The fourth proportional to 112,034.64, 168,078.06 and 49,710 is: 74,576.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,034.64 : 168,078.06 = 49,710 : x
  2. Step 2: Convert to fraction form
    112,034.64/168,078.06 = 49,710/x
  3. Step 3: Cross multiply
    112,034.64x = 168,078.06 × 49,710
  4. Step 4: Simplify right side
    112,034.64x = 8,355,160,362.60
  5. Step 5: Solve for x
    x = 8,355,160,362.60/112,034.64
  6. Step 6: Final answer
    x = 74,576.58

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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.