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Finding the Fourth Proportional to 176,418.72, 243,468.72 and 100,965.60

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Solution

The fourth proportional to 176,418.72, 243,468.72 and 100,965.60 is: 139,338.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,418.72 : 243,468.72 = 100,965.60 : x
  2. Step 2: Convert to fraction form
    176,418.72/243,468.72 = 100,965.60/x
  3. Step 3: Cross multiply
    176,418.72x = 243,468.72 × 100,965.60
  4. Step 4: Simplify right side
    176,418.72x = 24,581,965,396.03
  5. Step 5: Solve for x
    x = 24,581,965,396.03/176,418.72
  6. Step 6: Final answer
    x = 139,338.76

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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.