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Finding the Fourth Proportional to 140,167.80, 210,251.70 and 122,671.80

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Solution

The fourth proportional to 140,167.80, 210,251.70 and 122,671.80 is: 184,007.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,167.80 : 210,251.70 = 122,671.80 : x
  2. Step 2: Convert to fraction form
    140,167.80/210,251.70 = 122,671.80/x
  3. Step 3: Cross multiply
    140,167.80x = 210,251.70 × 122,671.80
  4. Step 4: Simplify right side
    140,167.80x = 25,791,954,492.06
  5. Step 5: Solve for x
    x = 25,791,954,492.06/140,167.80
  6. Step 6: Final answer
    x = 184,007.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.