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Finding the Fourth Proportional to 76,322.54, 105,302.48 and 44,485.89

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Solution

The fourth proportional to 76,322.54, 105,302.48 and 44,485.89 is: 61,377.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,322.54 : 105,302.48 = 44,485.89 : x
  2. Step 2: Convert to fraction form
    76,322.54/105,302.48 = 44,485.89/x
  3. Step 3: Cross multiply
    76,322.54x = 105,302.48 × 44,485.89
  4. Step 4: Simplify right side
    76,322.54x = 4,684,474,319.58
  5. Step 5: Solve for x
    x = 4,684,474,319.58/76,322.54
  6. Step 6: Final answer
    x = 61,377.34

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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.