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Finding the Fourth Proportional to 163,396.53, 225,512.24 and 99,771.57

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Solution

The fourth proportional to 163,396.53, 225,512.24 and 99,771.57 is: 137,700.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,396.53 : 225,512.24 = 99,771.57 : x
  2. Step 2: Convert to fraction form
    163,396.53/225,512.24 = 99,771.57/x
  3. Step 3: Cross multiply
    163,396.53x = 225,512.24 × 99,771.57
  4. Step 4: Simplify right side
    163,396.53x = 22,499,709,642.77
  5. Step 5: Solve for x
    x = 22,499,709,642.77/163,396.53
  6. Step 6: Final answer
    x = 137,700.05

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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.