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Finding the Fourth Proportional to 56,433.90, 84,585.09 and 45,353.10

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Solution

The fourth proportional to 56,433.90, 84,585.09 and 45,353.10 is: 67,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,433.90 : 84,585.09 = 45,353.10 : x
  2. Step 2: Convert to fraction form
    56,433.90/84,585.09 = 45,353.10/x
  3. Step 3: Cross multiply
    56,433.90x = 84,585.09 × 45,353.10
  4. Step 4: Simplify right side
    56,433.90x = 3,836,196,045.28
  5. Step 5: Solve for x
    x = 3,836,196,045.28/56,433.90
  6. Step 6: Final answer
    x = 67,976.80

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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.