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Finding the Fourth Proportional to 61,631.45, 92,653.42 and 48,640.41

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Solution

The fourth proportional to 61,631.45, 92,653.42 and 48,640.41 is: 73,123.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,631.45 : 92,653.42 = 48,640.41 : x
  2. Step 2: Convert to fraction form
    61,631.45/92,653.42 = 48,640.41/x
  3. Step 3: Cross multiply
    61,631.45x = 92,653.42 × 48,640.41
  4. Step 4: Simplify right side
    61,631.45x = 4,506,700,093.50
  5. Step 5: Solve for x
    x = 4,506,700,093.50/61,631.45
  6. Step 6: Final answer
    x = 73,123.38

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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.