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Finding the Fourth Proportional to 100,014.55, 149,943.96 and 50,068.94

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Solution

The fourth proportional to 100,014.55, 149,943.96 and 50,068.94 is: 75,064.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,014.55 : 149,943.96 = 50,068.94 : x
  2. Step 2: Convert to fraction form
    100,014.55/149,943.96 = 50,068.94/x
  3. Step 3: Cross multiply
    100,014.55x = 149,943.96 × 50,068.94
  4. Step 4: Simplify right side
    100,014.55x = 7,507,534,386.88
  5. Step 5: Solve for x
    x = 7,507,534,386.88/100,014.55
  6. Step 6: Final answer
    x = 75,064.42

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1.5x scale

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.