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Finding the Fourth Proportional to 118,972.80, 178,269.66 and 62,810.64

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Solution

The fourth proportional to 118,972.80, 178,269.66 and 62,810.64 is: 94,115.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,972.80 : 178,269.66 = 62,810.64 : x
  2. Step 2: Convert to fraction form
    118,972.80/178,269.66 = 62,810.64/x
  3. Step 3: Cross multiply
    118,972.80x = 178,269.66 × 62,810.64
  4. Step 4: Simplify right side
    118,972.80x = 11,197,231,437.18
  5. Step 5: Solve for x
    x = 11,197,231,437.18/118,972.80
  6. Step 6: Final answer
    x = 94,115.89

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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.