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Finding the Fourth Proportional to 77,904.59, 107,470.80 and 51,035.27

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Solution

The fourth proportional to 77,904.59, 107,470.80 and 51,035.27 is: 70,404.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,904.59 : 107,470.80 = 51,035.27 : x
  2. Step 2: Convert to fraction form
    77,904.59/107,470.80 = 51,035.27/x
  3. Step 3: Cross multiply
    77,904.59x = 107,470.80 × 51,035.27
  4. Step 4: Simplify right side
    77,904.59x = 5,484,800,757.76
  5. Step 5: Solve for x
    x = 5,484,800,757.76/77,904.59
  6. Step 6: Final answer
    x = 70,404.08

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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.