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Finding the Fourth Proportional to 113,560.36, 156,713.22 and 65,841.40

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Solution

The fourth proportional to 113,560.36, 156,713.22 and 65,841.40 is: 90,861.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,560.36 : 156,713.22 = 65,841.40 : x
  2. Step 2: Convert to fraction form
    113,560.36/156,713.22 = 65,841.40/x
  3. Step 3: Cross multiply
    113,560.36x = 156,713.22 × 65,841.40
  4. Step 4: Simplify right side
    113,560.36x = 10,318,217,803.31
  5. Step 5: Solve for x
    x = 10,318,217,803.31/113,560.36
  6. Step 6: Final answer
    x = 90,861.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.