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Finding the Fourth Proportional to 57,264.60, 85,896.90 and 53,117.40

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Solution

The fourth proportional to 57,264.60, 85,896.90 and 53,117.40 is: 79,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,264.60 : 85,896.90 = 53,117.40 : x
  2. Step 2: Convert to fraction form
    57,264.60/85,896.90 = 53,117.40/x
  3. Step 3: Cross multiply
    57,264.60x = 85,896.90 × 53,117.40
  4. Step 4: Simplify right side
    57,264.60x = 4,562,619,996.06
  5. Step 5: Solve for x
    x = 4,562,619,996.06/57,264.60
  6. Step 6: Final answer
    x = 79,676.10

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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.