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Finding the Fourth Proportional to 72,746.79, 109,083.29 and 33,270.08

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Solution

The fourth proportional to 72,746.79, 109,083.29 and 33,270.08 is: 49,888.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,746.79 : 109,083.29 = 33,270.08 : x
  2. Step 2: Convert to fraction form
    72,746.79/109,083.29 = 33,270.08/x
  3. Step 3: Cross multiply
    72,746.79x = 109,083.29 × 33,270.08
  4. Step 4: Simplify right side
    72,746.79x = 3,629,209,073.20
  5. Step 5: Solve for x
    x = 3,629,209,073.20/72,746.79
  6. Step 6: Final answer
    x = 49,888.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.