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Finding the Fourth Proportional to 72,871.98, 100,629.18 and 46,062.06

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Solution

The fourth proportional to 72,871.98, 100,629.18 and 46,062.06 is: 63,607.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,871.98 : 100,629.18 = 46,062.06 : x
  2. Step 2: Convert to fraction form
    72,871.98/100,629.18 = 46,062.06/x
  3. Step 3: Cross multiply
    72,871.98x = 100,629.18 × 46,062.06
  4. Step 4: Simplify right side
    72,871.98x = 4,635,187,326.91
  5. Step 5: Solve for x
    x = 4,635,187,326.91/72,871.98
  6. Step 6: Final answer
    x = 63,607.26

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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.