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Finding the Fourth Proportional to 100,934.40, 151,401.60 and 34,352.40

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Solution

The fourth proportional to 100,934.40, 151,401.60 and 34,352.40 is: 51,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,934.40 : 151,401.60 = 34,352.40 : x
  2. Step 2: Convert to fraction form
    100,934.40/151,401.60 = 34,352.40/x
  3. Step 3: Cross multiply
    100,934.40x = 151,401.60 × 34,352.40
  4. Step 4: Simplify right side
    100,934.40x = 5,201,008,323.84
  5. Step 5: Solve for x
    x = 5,201,008,323.84/100,934.40
  6. Step 6: Final answer
    x = 51,528.60

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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.