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Finding the Fourth Proportional to 72,703.16, 109,054.57 and 22,787.06

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Solution

The fourth proportional to 72,703.16, 109,054.57 and 22,787.06 is: 34,180.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,703.16 : 109,054.57 = 22,787.06 : x
  2. Step 2: Convert to fraction form
    72,703.16/109,054.57 = 22,787.06/x
  3. Step 3: Cross multiply
    72,703.16x = 109,054.57 × 22,787.06
  4. Step 4: Simplify right side
    72,703.16x = 2,485,032,427.62
  5. Step 5: Solve for x
    x = 2,485,032,427.62/72,703.16
  6. Step 6: Final answer
    x = 34,180.53

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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.