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Finding the Fourth Proportional to 62,431.80, 93,647.70 and 61,848.60

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Solution

The fourth proportional to 62,431.80, 93,647.70 and 61,848.60 is: 92,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,431.80 : 93,647.70 = 61,848.60 : x
  2. Step 2: Convert to fraction form
    62,431.80/93,647.70 = 61,848.60/x
  3. Step 3: Cross multiply
    62,431.80x = 93,647.70 × 61,848.60
  4. Step 4: Simplify right side
    62,431.80x = 5,791,979,138.22
  5. Step 5: Solve for x
    x = 5,791,979,138.22/62,431.80
  6. Step 6: Final answer
    x = 92,772.90

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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.