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Finding the Fourth Proportional to 75,861.76, 104,693.76 and 42,327.04

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Solution

The fourth proportional to 75,861.76, 104,693.76 and 42,327.04 is: 58,413.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,861.76 : 104,693.76 = 42,327.04 : x
  2. Step 2: Convert to fraction form
    75,861.76/104,693.76 = 42,327.04/x
  3. Step 3: Cross multiply
    75,861.76x = 104,693.76 × 42,327.04
  4. Step 4: Simplify right side
    75,861.76x = 4,431,376,967.27
  5. Step 5: Solve for x
    x = 4,431,376,967.27/75,861.76
  6. Step 6: Final answer
    x = 58,413.84

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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.