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Finding the Fourth Proportional to 70,314.32, 96,932.84 and 50,136.24

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Solution

The fourth proportional to 70,314.32, 96,932.84 and 50,136.24 is: 69,116.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,314.32 : 96,932.84 = 50,136.24 : x
  2. Step 2: Convert to fraction form
    70,314.32/96,932.84 = 50,136.24/x
  3. Step 3: Cross multiply
    70,314.32x = 96,932.84 × 50,136.24
  4. Step 4: Simplify right side
    70,314.32x = 4,859,848,130.12
  5. Step 5: Solve for x
    x = 4,859,848,130.12/70,314.32
  6. Step 6: Final answer
    x = 69,116.05

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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.