Home / 197,946.40-296,919.60-57,719.20

Finding the Fourth Proportional to 197,946.40, 296,919.60 and 57,719.20

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Solution

The fourth proportional to 197,946.40, 296,919.60 and 57,719.20 is: 86,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,946.40 : 296,919.60 = 57,719.20 : x
  2. Step 2: Convert to fraction form
    197,946.40/296,919.60 = 57,719.20/x
  3. Step 3: Cross multiply
    197,946.40x = 296,919.60 × 57,719.20
  4. Step 4: Simplify right side
    197,946.40x = 17,137,961,776.32
  5. Step 5: Solve for x
    x = 17,137,961,776.32/197,946.40
  6. Step 6: Final answer
    x = 86,578.80

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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.