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Finding the Fourth Proportional to 173,123.10, 259,879.05 and 133,854.30

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Solution

The fourth proportional to 173,123.10, 259,879.05 and 133,854.30 is: 200,931.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,123.10 : 259,879.05 = 133,854.30 : x
  2. Step 2: Convert to fraction form
    173,123.10/259,879.05 = 133,854.30/x
  3. Step 3: Cross multiply
    173,123.10x = 259,879.05 × 133,854.30
  4. Step 4: Simplify right side
    173,123.10x = 34,785,928,322.42
  5. Step 5: Solve for x
    x = 34,785,928,322.42/173,123.10
  6. Step 6: Final answer
    x = 200,931.76

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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.