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Finding the Fourth Proportional to 216,452.32, 298,698.63 and 120,959.80

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Solution

The fourth proportional to 216,452.32, 298,698.63 and 120,959.80 is: 166,921.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,452.32 : 298,698.63 = 120,959.80 : x
  2. Step 2: Convert to fraction form
    216,452.32/298,698.63 = 120,959.80/x
  3. Step 3: Cross multiply
    216,452.32x = 298,698.63 × 120,959.80
  4. Step 4: Simplify right side
    216,452.32x = 36,130,526,545.07
  5. Step 5: Solve for x
    x = 36,130,526,545.07/216,452.32
  6. Step 6: Final answer
    x = 166,921.41

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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.