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Finding the Fourth Proportional to 172,605.21, 238,268.84 and 116,049.39

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Solution

The fourth proportional to 172,605.21, 238,268.84 and 116,049.39 is: 160,197.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,605.21 : 238,268.84 = 116,049.39 : x
  2. Step 2: Convert to fraction form
    172,605.21/238,268.84 = 116,049.39/x
  3. Step 3: Cross multiply
    172,605.21x = 238,268.84 × 116,049.39
  4. Step 4: Simplify right side
    172,605.21x = 27,650,952,957.76
  5. Step 5: Solve for x
    x = 27,650,952,957.76/172,605.21
  6. Step 6: Final answer
    x = 160,197.67

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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.