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Finding the Fourth Proportional to 268,774.53, 370,900.69 and 147,915.64

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Solution

The fourth proportional to 268,774.53, 370,900.69 and 147,915.64 is: 204,119.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,774.53 : 370,900.69 = 147,915.64 : x
  2. Step 2: Convert to fraction form
    268,774.53/370,900.69 = 147,915.64/x
  3. Step 3: Cross multiply
    268,774.53x = 370,900.69 × 147,915.64
  4. Step 4: Simplify right side
    268,774.53x = 54,862,012,937.79
  5. Step 5: Solve for x
    x = 54,862,012,937.79/268,774.53
  6. Step 6: Final answer
    x = 204,119.09

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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.