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Finding the Fourth Proportional to 113,217.80, 169,826.70 and 97,665.80

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Solution

The fourth proportional to 113,217.80, 169,826.70 and 97,665.80 is: 146,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,217.80 : 169,826.70 = 97,665.80 : x
  2. Step 2: Convert to fraction form
    113,217.80/169,826.70 = 97,665.80/x
  3. Step 3: Cross multiply
    113,217.80x = 169,826.70 × 97,665.80
  4. Step 4: Simplify right side
    113,217.80x = 16,586,260,516.86
  5. Step 5: Solve for x
    x = 16,586,260,516.86/113,217.80
  6. Step 6: Final answer
    x = 146,498.70

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1.5x scale

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.