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Finding the Fourth Proportional to 118,379.40, 177,569.10 and 48,222.60

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Solution

The fourth proportional to 118,379.40, 177,569.10 and 48,222.60 is: 72,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,379.40 : 177,569.10 = 48,222.60 : x
  2. Step 2: Convert to fraction form
    118,379.40/177,569.10 = 48,222.60/x
  3. Step 3: Cross multiply
    118,379.40x = 177,569.10 × 48,222.60
  4. Step 4: Simplify right side
    118,379.40x = 8,562,843,681.66
  5. Step 5: Solve for x
    x = 8,562,843,681.66/118,379.40
  6. Step 6: Final answer
    x = 72,333.90

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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.