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Finding the Fourth Proportional to 86,503.68, 119,361.60 and 48,777.12

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Solution

The fourth proportional to 86,503.68, 119,361.60 and 48,777.12 is: 67,304.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,503.68 : 119,361.60 = 48,777.12 : x
  2. Step 2: Convert to fraction form
    86,503.68/119,361.60 = 48,777.12/x
  3. Step 3: Cross multiply
    86,503.68x = 119,361.60 × 48,777.12
  4. Step 4: Simplify right side
    86,503.68x = 5,822,115,086.59
  5. Step 5: Solve for x
    x = 5,822,115,086.59/86,503.68
  6. Step 6: Final answer
    x = 67,304.83

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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.