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Finding the Fourth Proportional to 69,740.58, 104,603.31 and 41,280.42

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Solution

The fourth proportional to 69,740.58, 104,603.31 and 41,280.42 is: 61,916.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,740.58 : 104,603.31 = 41,280.42 : x
  2. Step 2: Convert to fraction form
    69,740.58/104,603.31 = 41,280.42/x
  3. Step 3: Cross multiply
    69,740.58x = 104,603.31 × 41,280.42
  4. Step 4: Simplify right side
    69,740.58x = 4,318,068,570.19
  5. Step 5: Solve for x
    x = 4,318,068,570.19/69,740.58
  6. Step 6: Final answer
    x = 61,916.16

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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.