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Finding the Fourth Proportional to 120,934.63, 166,903.31 and 73,214.29

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Solution

The fourth proportional to 120,934.63, 166,903.31 and 73,214.29 is: 101,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,934.63 : 166,903.31 = 73,214.29 : x
  2. Step 2: Convert to fraction form
    120,934.63/166,903.31 = 73,214.29/x
  3. Step 3: Cross multiply
    120,934.63x = 166,903.31 × 73,214.29
  4. Step 4: Simplify right side
    120,934.63x = 12,219,706,139.71
  5. Step 5: Solve for x
    x = 12,219,706,139.71/120,934.63
  6. Step 6: Final answer
    x = 101,043.90

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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.