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Finding the Fourth Proportional to 216,417.94, 298,651.19 and 120,925.42

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Solution

The fourth proportional to 216,417.94, 298,651.19 and 120,925.42 is: 166,873.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,417.94 : 298,651.19 = 120,925.42 : x
  2. Step 2: Convert to fraction form
    216,417.94/298,651.19 = 120,925.42/x
  3. Step 3: Cross multiply
    216,417.94x = 298,651.19 × 120,925.42
  4. Step 4: Simplify right side
    216,417.94x = 36,114,519,232.99
  5. Step 5: Solve for x
    x = 36,114,519,232.99/216,417.94
  6. Step 6: Final answer
    x = 166,873.96

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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.