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Finding the Fourth Proportional to 72,704.71, 109,088.93 and 35,293.51

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Solution

The fourth proportional to 72,704.71, 109,088.93 and 35,293.51 is: 52,955.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,704.71 : 109,088.93 = 35,293.51 : x
  2. Step 2: Convert to fraction form
    72,704.71/109,088.93 = 35,293.51/x
  3. Step 3: Cross multiply
    72,704.71x = 109,088.93 × 35,293.51
  4. Step 4: Simplify right side
    72,704.71x = 3,850,131,241.84
  5. Step 5: Solve for x
    x = 3,850,131,241.84/72,704.71
  6. Step 6: Final answer
    x = 52,955.73

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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.