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Finding the Fourth Proportional to 73,245, 109,802.34 and 26,487.48

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Solution

The fourth proportional to 73,245, 109,802.34 and 26,487.48 is: 39,707.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,245 : 109,802.34 = 26,487.48 : x
  2. Step 2: Convert to fraction form
    73,245/109,802.34 = 26,487.48/x
  3. Step 3: Cross multiply
    73,245x = 109,802.34 × 26,487.48
  4. Step 4: Simplify right side
    73,245x = 2,908,387,284.70
  5. Step 5: Solve for x
    x = 2,908,387,284.70/73,245
  6. Step 6: Final answer
    x = 39,707.66

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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.