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Finding the Fourth Proportional to 73,119.14, 109,631.19 and 28,750.22

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Solution

The fourth proportional to 73,119.14, 109,631.19 and 28,750.22 is: 43,106.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,119.14 : 109,631.19 = 28,750.22 : x
  2. Step 2: Convert to fraction form
    73,119.14/109,631.19 = 28,750.22/x
  3. Step 3: Cross multiply
    73,119.14x = 109,631.19 × 28,750.22
  4. Step 4: Simplify right side
    73,119.14x = 3,151,920,831.36
  5. Step 5: Solve for x
    x = 3,151,920,831.36/73,119.14
  6. Step 6: Final answer
    x = 43,106.65

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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.