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Finding the Fourth Proportional to 201,484.18, 278,039.38 and 110,834.39

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Solution

The fourth proportional to 201,484.18, 278,039.38 and 110,834.39 is: 152,946.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,484.18 : 278,039.38 = 110,834.39 : x
  2. Step 2: Convert to fraction form
    201,484.18/278,039.38 = 110,834.39/x
  3. Step 3: Cross multiply
    201,484.18x = 278,039.38 × 110,834.39
  4. Step 4: Simplify right side
    201,484.18x = 30,816,325,911.92
  5. Step 5: Solve for x
    x = 30,816,325,911.92/201,484.18
  6. Step 6: Final answer
    x = 152,946.63

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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.