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Finding the Fourth Proportional to 77,999.98, 117,019.50 and 44,757.58

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Solution

The fourth proportional to 77,999.98, 117,019.50 and 44,757.58 is: 67,147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,999.98 : 117,019.50 = 44,757.58 : x
  2. Step 2: Convert to fraction form
    77,999.98/117,019.50 = 44,757.58/x
  3. Step 3: Cross multiply
    77,999.98x = 117,019.50 × 44,757.58
  4. Step 4: Simplify right side
    77,999.98x = 5,237,509,632.81
  5. Step 5: Solve for x
    x = 5,237,509,632.81/77,999.98
  6. Step 6: Final answer
    x = 67,147.58

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1.5x scale

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.