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Finding the Fourth Proportional to 77,366.52, 115,970.36 and 44,015.58

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Solution

The fourth proportional to 77,366.52, 115,970.36 and 44,015.58 is: 65,978.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,366.52 : 115,970.36 = 44,015.58 : x
  2. Step 2: Convert to fraction form
    77,366.52/115,970.36 = 44,015.58/x
  3. Step 3: Cross multiply
    77,366.52x = 115,970.36 × 44,015.58
  4. Step 4: Simplify right side
    77,366.52x = 5,104,502,658.21
  5. Step 5: Solve for x
    x = 5,104,502,658.21/77,366.52
  6. Step 6: Final answer
    x = 65,978.19

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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.