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Finding the Fourth Proportional to 118,845.18, 178,264.11 and 48,671.64

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Solution

The fourth proportional to 118,845.18, 178,264.11 and 48,671.64 is: 73,005.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,845.18 : 178,264.11 = 48,671.64 : x
  2. Step 2: Convert to fraction form
    118,845.18/178,264.11 = 48,671.64/x
  3. Step 3: Cross multiply
    118,845.18x = 178,264.11 × 48,671.64
  4. Step 4: Simplify right side
    118,845.18x = 8,676,406,586.84
  5. Step 5: Solve for x
    x = 8,676,406,586.84/118,845.18
  6. Step 6: Final answer
    x = 73,005.96

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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.