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Finding the Fourth Proportional to 77,496.56, 106,917.76 and 50,654.56

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Solution

The fourth proportional to 77,496.56, 106,917.76 and 50,654.56 is: 69,885.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,496.56 : 106,917.76 = 50,654.56 : x
  2. Step 2: Convert to fraction form
    77,496.56/106,917.76 = 50,654.56/x
  3. Step 3: Cross multiply
    77,496.56x = 106,917.76 × 50,654.56
  4. Step 4: Simplify right side
    77,496.56x = 5,415,872,088.99
  5. Step 5: Solve for x
    x = 5,415,872,088.99/77,496.56
  6. Step 6: Final answer
    x = 69,885.32

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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.