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Finding the Fourth Proportional to 64,696.64, 88,804.35 and 57,464.96

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Solution

The fourth proportional to 64,696.64, 88,804.35 and 57,464.96 is: 78,877.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,696.64 : 88,804.35 = 57,464.96 : x
  2. Step 2: Convert to fraction form
    64,696.64/88,804.35 = 57,464.96/x
  3. Step 3: Cross multiply
    64,696.64x = 88,804.35 × 57,464.96
  4. Step 4: Simplify right side
    64,696.64x = 5,103,137,976.55
  5. Step 5: Solve for x
    x = 5,103,137,976.55/64,696.64
  6. Step 6: Final answer
    x = 78,877.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.