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Finding the Fourth Proportional to 291,367.50, 437,050.62 and 91,705.33

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Solution

The fourth proportional to 291,367.50, 437,050.62 and 91,705.33 is: 137,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,367.50 : 437,050.62 = 91,705.33 : x
  2. Step 2: Convert to fraction form
    291,367.50/437,050.62 = 91,705.33/x
  3. Step 3: Cross multiply
    291,367.50x = 437,050.62 × 91,705.33
  4. Step 4: Simplify right side
    291,367.50x = 40,079,871,880.12
  5. Step 5: Solve for x
    x = 40,079,871,880.12/291,367.50
  6. Step 6: Final answer
    x = 137,557.80

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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.