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Finding the Fourth Proportional to 72,304.84, 108,623.76 and 51,297.04

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Solution

The fourth proportional to 72,304.84, 108,623.76 and 51,297.04 is: 77,063.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,304.84 : 108,623.76 = 51,297.04 : x
  2. Step 2: Convert to fraction form
    72,304.84/108,623.76 = 51,297.04/x
  3. Step 3: Cross multiply
    72,304.84x = 108,623.76 × 51,297.04
  4. Step 4: Simplify right side
    72,304.84x = 5,572,077,361.67
  5. Step 5: Solve for x
    x = 5,572,077,361.67/72,304.84
  6. Step 6: Final answer
    x = 77,063.68

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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.