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Finding the Fourth Proportional to 120,337.76, 166,109.74 and 70,036.76

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Solution

The fourth proportional to 120,337.76, 166,109.74 and 70,036.76 is: 96,676.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,337.76 : 166,109.74 = 70,036.76 : x
  2. Step 2: Convert to fraction form
    120,337.76/166,109.74 = 70,036.76/x
  3. Step 3: Cross multiply
    120,337.76x = 166,109.74 × 70,036.76
  4. Step 4: Simplify right side
    120,337.76x = 11,633,787,994.04
  5. Step 5: Solve for x
    x = 11,633,787,994.04/120,337.76
  6. Step 6: Final answer
    x = 96,676.12

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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.