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Finding the Fourth Proportional to 65,138.70, 97,853.85 and 62,660.10

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Solution

The fourth proportional to 65,138.70, 97,853.85 and 62,660.10 is: 94,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,138.70 : 97,853.85 = 62,660.10 : x
  2. Step 2: Convert to fraction form
    65,138.70/97,853.85 = 62,660.10/x
  3. Step 3: Cross multiply
    65,138.70x = 97,853.85 × 62,660.10
  4. Step 4: Simplify right side
    65,138.70x = 6,131,532,026.39
  5. Step 5: Solve for x
    x = 6,131,532,026.39/65,138.70
  6. Step 6: Final answer
    x = 94,130.40

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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.