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Finding the Fourth Proportional to 268,653.12, 370,726.66 and 147,774.89

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Solution

The fourth proportional to 268,653.12, 370,726.66 and 147,774.89 is: 203,921.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,653.12 : 370,726.66 = 147,774.89 : x
  2. Step 2: Convert to fraction form
    268,653.12/370,726.66 = 147,774.89/x
  3. Step 3: Cross multiply
    268,653.12x = 370,726.66 × 147,774.89
  4. Step 4: Simplify right side
    268,653.12x = 54,784,091,401.57
  5. Step 5: Solve for x
    x = 54,784,091,401.57/268,653.12
  6. Step 6: Final answer
    x = 203,921.29

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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.