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Finding the Fourth Proportional to 78,521.88, 108,362.86 and 44,994.36

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Solution

The fourth proportional to 78,521.88, 108,362.86 and 44,994.36 is: 62,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,521.88 : 108,362.86 = 44,994.36 : x
  2. Step 2: Convert to fraction form
    78,521.88/108,362.86 = 44,994.36/x
  3. Step 3: Cross multiply
    78,521.88x = 108,362.86 × 44,994.36
  4. Step 4: Simplify right side
    78,521.88x = 4,875,717,533.47
  5. Step 5: Solve for x
    x = 4,875,717,533.47/78,521.88
  6. Step 6: Final answer
    x = 62,093.74

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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.