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Finding the Fourth Proportional to 69,643.76, 96,187.52 and 46,943.60

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Solution

The fourth proportional to 69,643.76, 96,187.52 and 46,943.60 is: 64,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,643.76 : 96,187.52 = 46,943.60 : x
  2. Step 2: Convert to fraction form
    69,643.76/96,187.52 = 46,943.60/x
  3. Step 3: Cross multiply
    69,643.76x = 96,187.52 × 46,943.60
  4. Step 4: Simplify right side
    69,643.76x = 4,515,388,463.87
  5. Step 5: Solve for x
    x = 4,515,388,463.87/69,643.76
  6. Step 6: Final answer
    x = 64,835.51

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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.