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Finding the Fourth Proportional to 216,453.99, 298,707.27 and 120,962.28

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Solution

The fourth proportional to 216,453.99, 298,707.27 and 120,962.28 is: 166,928.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,453.99 : 298,707.27 = 120,962.28 : x
  2. Step 2: Convert to fraction form
    216,453.99/298,707.27 = 120,962.28/x
  3. Step 3: Cross multiply
    216,453.99x = 298,707.27 × 120,962.28
  4. Step 4: Simplify right side
    216,453.99x = 36,132,312,431.78
  5. Step 5: Solve for x
    x = 36,132,312,431.78/216,453.99
  6. Step 6: Final answer
    x = 166,928.37

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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.