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Finding the Fourth Proportional to 77,535.99, 107,002.25 and 43,550.47

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Solution

The fourth proportional to 77,535.99, 107,002.25 and 43,550.47 is: 60,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,535.99 : 107,002.25 = 43,550.47 : x
  2. Step 2: Convert to fraction form
    77,535.99/107,002.25 = 43,550.47/x
  3. Step 3: Cross multiply
    77,535.99x = 107,002.25 × 43,550.47
  4. Step 4: Simplify right side
    77,535.99x = 4,659,998,060.81
  5. Step 5: Solve for x
    x = 4,659,998,060.81/77,535.99
  6. Step 6: Final answer
    x = 60,101.10

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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.