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Finding the Fourth Proportional to 210,079.59, 315,160.35 and 67,960.09

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Solution

The fourth proportional to 210,079.59, 315,160.35 and 67,960.09 is: 101,953.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,079.59 : 315,160.35 = 67,960.09 : x
  2. Step 2: Convert to fraction form
    210,079.59/315,160.35 = 67,960.09/x
  3. Step 3: Cross multiply
    210,079.59x = 315,160.35 × 67,960.09
  4. Step 4: Simplify right side
    210,079.59x = 21,418,325,750.43
  5. Step 5: Solve for x
    x = 21,418,325,750.43/210,079.59
  6. Step 6: Final answer
    x = 101,953.39

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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.