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Finding the Fourth Proportional to 118,768.56, 178,148.52 and 35,660.40

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Solution

The fourth proportional to 118,768.56, 178,148.52 and 35,660.40 is: 53,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,768.56 : 178,148.52 = 35,660.40 : x
  2. Step 2: Convert to fraction form
    118,768.56/178,148.52 = 35,660.40/x
  3. Step 3: Cross multiply
    118,768.56x = 178,148.52 × 35,660.40
  4. Step 4: Simplify right side
    118,768.56x = 6,352,847,482.61
  5. Step 5: Solve for x
    x = 6,352,847,482.61/118,768.56
  6. Step 6: Final answer
    x = 53,489.30

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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.