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Finding the Fourth Proportional to 78,304.23, 108,059.99 and 46,479.51

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Solution

The fourth proportional to 78,304.23, 108,059.99 and 46,479.51 is: 64,141.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,304.23 : 108,059.99 = 46,479.51 : x
  2. Step 2: Convert to fraction form
    78,304.23/108,059.99 = 46,479.51/x
  3. Step 3: Cross multiply
    78,304.23x = 108,059.99 × 46,479.51
  4. Step 4: Simplify right side
    78,304.23x = 5,022,575,153.41
  5. Step 5: Solve for x
    x = 5,022,575,153.41/78,304.23
  6. Step 6: Final answer
    x = 64,141.81

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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.