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Finding the Fourth Proportional to 60,639.57, 90,823.95 and 46,495.42

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Solution

The fourth proportional to 60,639.57, 90,823.95 and 46,495.42 is: 69,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,639.57 : 90,823.95 = 46,495.42 : x
  2. Step 2: Convert to fraction form
    60,639.57/90,823.95 = 46,495.42/x
  3. Step 3: Cross multiply
    60,639.57x = 90,823.95 × 46,495.42
  4. Step 4: Simplify right side
    60,639.57x = 4,222,897,474.25
  5. Step 5: Solve for x
    x = 4,222,897,474.25/60,639.57
  6. Step 6: Final answer
    x = 69,639.30

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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.