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Finding the Fourth Proportional to 120,970.13, 166,936.68 and 67,248.23

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Solution

The fourth proportional to 120,970.13, 166,936.68 and 67,248.23 is: 92,801.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,970.13 : 166,936.68 = 67,248.23 : x
  2. Step 2: Convert to fraction form
    120,970.13/166,936.68 = 67,248.23/x
  3. Step 3: Cross multiply
    120,970.13x = 166,936.68 × 67,248.23
  4. Step 4: Simplify right side
    120,970.13x = 11,226,195,417.39
  5. Step 5: Solve for x
    x = 11,226,195,417.39/120,970.13
  6. Step 6: Final answer
    x = 92,801.39

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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.