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Finding the Fourth Proportional to 118,841.58, 178,253.60 and 43,926.78

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Solution

The fourth proportional to 118,841.58, 178,253.60 and 43,926.78 is: 65,886.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,841.58 : 178,253.60 = 43,926.78 : x
  2. Step 2: Convert to fraction form
    118,841.58/178,253.60 = 43,926.78/x
  3. Step 3: Cross multiply
    118,841.58x = 178,253.60 × 43,926.78
  4. Step 4: Simplify right side
    118,841.58x = 7,830,106,671.41
  5. Step 5: Solve for x
    x = 7,830,106,671.41/118,841.58
  6. Step 6: Final answer
    x = 65,886.93

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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.