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Finding the Fourth Proportional to 228,112.70, 342,169.05 and 61,900.70

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Solution

The fourth proportional to 228,112.70, 342,169.05 and 61,900.70 is: 92,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,112.70 : 342,169.05 = 61,900.70 : x
  2. Step 2: Convert to fraction form
    228,112.70/342,169.05 = 61,900.70/x
  3. Step 3: Cross multiply
    228,112.70x = 342,169.05 × 61,900.70
  4. Step 4: Simplify right side
    228,112.70x = 21,180,503,713.34
  5. Step 5: Solve for x
    x = 21,180,503,713.34/228,112.70
  6. Step 6: Final answer
    x = 92,851.05

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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.