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Finding the Fourth Proportional to 73,065.14, 100,831.50 and 40,359.48

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Solution

The fourth proportional to 73,065.14, 100,831.50 and 40,359.48 is: 55,696.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,065.14 : 100,831.50 = 40,359.48 : x
  2. Step 2: Convert to fraction form
    73,065.14/100,831.50 = 40,359.48/x
  3. Step 3: Cross multiply
    73,065.14x = 100,831.50 × 40,359.48
  4. Step 4: Simplify right side
    73,065.14x = 4,069,506,907.62
  5. Step 5: Solve for x
    x = 4,069,506,907.62/73,065.14
  6. Step 6: Final answer
    x = 55,696.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.