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Finding the Fourth Proportional to 120,959.15, 166,929.32 and 67,245.06

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Solution

The fourth proportional to 120,959.15, 166,929.32 and 67,245.06 is: 92,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,959.15 : 166,929.32 = 67,245.06 : x
  2. Step 2: Convert to fraction form
    120,959.15/166,929.32 = 67,245.06/x
  3. Step 3: Cross multiply
    120,959.15x = 166,929.32 × 67,245.06
  4. Step 4: Simplify right side
    120,959.15x = 11,225,172,139.16
  5. Step 5: Solve for x
    x = 11,225,172,139.16/120,959.15
  6. Step 6: Final answer
    x = 92,801.35

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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.