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Finding the Fourth Proportional to 125,474.58, 173,078.76 and 74,453.67

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Solution

The fourth proportional to 125,474.58, 173,078.76 and 74,453.67 is: 102,700.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,474.58 : 173,078.76 = 74,453.67 : x
  2. Step 2: Convert to fraction form
    125,474.58/173,078.76 = 74,453.67/x
  3. Step 3: Cross multiply
    125,474.58x = 173,078.76 × 74,453.67
  4. Step 4: Simplify right side
    125,474.58x = 12,886,348,881.05
  5. Step 5: Solve for x
    x = 12,886,348,881.05/125,474.58
  6. Step 6: Final answer
    x = 102,700.87

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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.