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Finding the Fourth Proportional to 72,957.64, 100,637.22 and 46,078.60

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Solution

The fourth proportional to 72,957.64, 100,637.22 and 46,078.60 is: 63,560.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,957.64 : 100,637.22 = 46,078.60 : x
  2. Step 2: Convert to fraction form
    72,957.64/100,637.22 = 46,078.60/x
  3. Step 3: Cross multiply
    72,957.64x = 100,637.22 × 46,078.60
  4. Step 4: Simplify right side
    72,957.64x = 4,637,222,205.49
  5. Step 5: Solve for x
    x = 4,637,222,205.49/72,957.64
  6. Step 6: Final answer
    x = 63,560.47

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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.