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Finding the Fourth Proportional to 216,840.21, 299,100.64 and 173,922.68

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Solution

The fourth proportional to 216,840.21, 299,100.64 and 173,922.68 is: 239,901.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,840.21 : 299,100.64 = 173,922.68 : x
  2. Step 2: Convert to fraction form
    216,840.21/299,100.64 = 173,922.68/x
  3. Step 3: Cross multiply
    216,840.21x = 299,100.64 × 173,922.68
  4. Step 4: Simplify right side
    216,840.21x = 52,020,384,898.52
  5. Step 5: Solve for x
    x = 52,020,384,898.52/216,840.21
  6. Step 6: Final answer
    x = 239,901.93

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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.