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Finding the Fourth Proportional to 78,468.54, 108,296.55 and 44,482.56

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Solution

The fourth proportional to 78,468.54, 108,296.55 and 44,482.56 is: 61,391.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,468.54 : 108,296.55 = 44,482.56 : x
  2. Step 2: Convert to fraction form
    78,468.54/108,296.55 = 44,482.56/x
  3. Step 3: Cross multiply
    78,468.54x = 108,296.55 × 44,482.56
  4. Step 4: Simplify right side
    78,468.54x = 4,817,307,783.17
  5. Step 5: Solve for x
    x = 4,817,307,783.17/78,468.54
  6. Step 6: Final answer
    x = 61,391.58

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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.