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Finding the Fourth Proportional to 216,506.01, 298,792.31 and 121,016.73

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Solution

The fourth proportional to 216,506.01, 298,792.31 and 121,016.73 is: 167,010.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,506.01 : 298,792.31 = 121,016.73 : x
  2. Step 2: Convert to fraction form
    216,506.01/298,792.31 = 121,016.73/x
  3. Step 3: Cross multiply
    216,506.01x = 298,792.31 × 121,016.73
  4. Step 4: Simplify right side
    216,506.01x = 36,158,867,700.26
  5. Step 5: Solve for x
    x = 36,158,867,700.26/216,506.01
  6. Step 6: Final answer
    x = 167,010.92

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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.