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Finding the Fourth Proportional to 72,047.51, 99,425.19 and 41,840.26

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Solution

The fourth proportional to 72,047.51, 99,425.19 and 41,840.26 is: 57,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,047.51 : 99,425.19 = 41,840.26 : x
  2. Step 2: Convert to fraction form
    72,047.51/99,425.19 = 41,840.26/x
  3. Step 3: Cross multiply
    72,047.51x = 99,425.19 × 41,840.26
  4. Step 4: Simplify right side
    72,047.51x = 4,159,976,032.40
  5. Step 5: Solve for x
    x = 4,159,976,032.40/72,047.51
  6. Step 6: Final answer
    x = 57,739.34

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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.