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Finding the Fourth Proportional to 75,622.40, 113,433.60 and 63,812.60

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Solution

The fourth proportional to 75,622.40, 113,433.60 and 63,812.60 is: 95,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,622.40 : 113,433.60 = 63,812.60 : x
  2. Step 2: Convert to fraction form
    75,622.40/113,433.60 = 63,812.60/x
  3. Step 3: Cross multiply
    75,622.40x = 113,433.60 × 63,812.60
  4. Step 4: Simplify right side
    75,622.40x = 7,238,492,943.36
  5. Step 5: Solve for x
    x = 7,238,492,943.36/75,622.40
  6. Step 6: Final answer
    x = 95,718.90

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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.