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Finding the Fourth Proportional to 268,653.10, 370,726.65 and 147,774.88

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Solution

The fourth proportional to 268,653.10, 370,726.65 and 147,774.88 is: 203,921.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,653.10 : 370,726.65 = 147,774.88 : x
  2. Step 2: Convert to fraction form
    268,653.10/370,726.65 = 147,774.88/x
  3. Step 3: Cross multiply
    268,653.10x = 370,726.65 × 147,774.88
  4. Step 4: Simplify right side
    268,653.10x = 54,784,086,216.55
  5. Step 5: Solve for x
    x = 54,784,086,216.55/268,653.10
  6. Step 6: Final answer
    x = 203,921.29

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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.