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Finding the Fourth Proportional to 73,115.42, 109,659.29 and 35,637.84

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Solution

The fourth proportional to 73,115.42, 109,659.29 and 35,637.84 is: 53,450.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,115.42 : 109,659.29 = 35,637.84 : x
  2. Step 2: Convert to fraction form
    73,115.42/109,659.29 = 35,637.84/x
  3. Step 3: Cross multiply
    73,115.42x = 109,659.29 × 35,637.84
  4. Step 4: Simplify right side
    73,115.42x = 3,908,020,053.34
  5. Step 5: Solve for x
    x = 3,908,020,053.34/73,115.42
  6. Step 6: Final answer
    x = 53,450.02

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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.