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Finding the Fourth Proportional to 202,368.28, 279,268.30 and 111,724.32

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Solution

The fourth proportional to 202,368.28, 279,268.30 and 111,724.32 is: 154,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,368.28 : 279,268.30 = 111,724.32 : x
  2. Step 2: Convert to fraction form
    202,368.28/279,268.30 = 111,724.32/x
  3. Step 3: Cross multiply
    202,368.28x = 279,268.30 × 111,724.32
  4. Step 4: Simplify right side
    202,368.28x = 31,201,060,915.06
  5. Step 5: Solve for x
    x = 31,201,060,915.06/202,368.28
  6. Step 6: Final answer
    x = 154,179.60

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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.