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Finding the Fourth Proportional to 72,705.51, 109,080.27 and 22,792.77

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Solution

The fourth proportional to 72,705.51, 109,080.27 and 22,792.77 is: 34,196.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,705.51 : 109,080.27 = 22,792.77 : x
  2. Step 2: Convert to fraction form
    72,705.51/109,080.27 = 22,792.77/x
  3. Step 3: Cross multiply
    72,705.51x = 109,080.27 × 22,792.77
  4. Step 4: Simplify right side
    72,705.51x = 2,486,241,505.65
  5. Step 5: Solve for x
    x = 2,486,241,505.65/72,705.51
  6. Step 6: Final answer
    x = 34,196.05

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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.