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Finding the Fourth Proportional to 118,737.72, 178,094.13 and 62,555.21

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Solution

The fourth proportional to 118,737.72, 178,094.13 and 62,555.21 is: 93,826.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,737.72 : 178,094.13 = 62,555.21 : x
  2. Step 2: Convert to fraction form
    118,737.72/178,094.13 = 62,555.21/x
  3. Step 3: Cross multiply
    118,737.72x = 178,094.13 × 62,555.21
  4. Step 4: Simplify right side
    118,737.72x = 11,140,716,147.15
  5. Step 5: Solve for x
    x = 11,140,716,147.15/118,737.72
  6. Step 6: Final answer
    x = 93,826.26

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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.