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Finding the Fourth Proportional to 74,773.73, 103,203.72 and 42,960.17

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Solution

The fourth proportional to 74,773.73, 103,203.72 and 42,960.17 is: 59,294.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,773.73 : 103,203.72 = 42,960.17 : x
  2. Step 2: Convert to fraction form
    74,773.73/103,203.72 = 42,960.17/x
  3. Step 3: Cross multiply
    74,773.73x = 103,203.72 × 42,960.17
  4. Step 4: Simplify right side
    74,773.73x = 4,433,649,613.84
  5. Step 5: Solve for x
    x = 4,433,649,613.84/74,773.73
  6. Step 6: Final answer
    x = 59,294.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.