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Finding the Fourth Proportional to 72,810.41, 109,223.06 and 27,869.52

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Solution

The fourth proportional to 72,810.41, 109,223.06 and 27,869.52 is: 41,807.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,810.41 : 109,223.06 = 27,869.52 : x
  2. Step 2: Convert to fraction form
    72,810.41/109,223.06 = 27,869.52/x
  3. Step 3: Cross multiply
    72,810.41x = 109,223.06 × 27,869.52
  4. Step 4: Simplify right side
    72,810.41x = 3,043,994,255.13
  5. Step 5: Solve for x
    x = 3,043,994,255.13/72,810.41
  6. Step 6: Final answer
    x = 41,807.13

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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.