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Finding the Fourth Proportional to 224,617.32, 309,969.53 and 122,642.46

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Solution

The fourth proportional to 224,617.32, 309,969.53 and 122,642.46 is: 169,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,617.32 : 309,969.53 = 122,642.46 : x
  2. Step 2: Convert to fraction form
    224,617.32/309,969.53 = 122,642.46/x
  3. Step 3: Cross multiply
    224,617.32x = 309,969.53 × 122,642.46
  4. Step 4: Simplify right side
    224,617.32x = 38,015,424,441.00
  5. Step 5: Solve for x
    x = 38,015,424,441.00/224,617.32
  6. Step 6: Final answer
    x = 169,245.30

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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.