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Finding the Fourth Proportional to 118,710.55, 178,037.88 and 34,448.48

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Solution

The fourth proportional to 118,710.55, 178,037.88 and 34,448.48 is: 51,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,710.55 : 178,037.88 = 34,448.48 : x
  2. Step 2: Convert to fraction form
    118,710.55/178,037.88 = 34,448.48/x
  3. Step 3: Cross multiply
    118,710.55x = 178,037.88 × 34,448.48
  4. Step 4: Simplify right side
    118,710.55x = 6,133,134,348.42
  5. Step 5: Solve for x
    x = 6,133,134,348.42/118,710.55
  6. Step 6: Final answer
    x = 51,664.61

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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.