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Finding the Fourth Proportional to 118,710.72, 178,064.64 and 35,604

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Solution

The fourth proportional to 118,710.72, 178,064.64 and 35,604 is: 53,405.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,710.72 : 178,064.64 = 35,604 : x
  2. Step 2: Convert to fraction form
    118,710.72/178,064.64 = 35,604/x
  3. Step 3: Cross multiply
    118,710.72x = 178,064.64 × 35,604
  4. Step 4: Simplify right side
    118,710.72x = 6,339,813,442.56
  5. Step 5: Solve for x
    x = 6,339,813,442.56/118,710.72
  6. Step 6: Final answer
    x = 53,405.57

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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.