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Finding the Fourth Proportional to 238,450.26, 357,978.90 and 154,561.46

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Solution

The fourth proportional to 238,450.26, 357,978.90 and 154,561.46 is: 232,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,450.26 : 357,978.90 = 154,561.46 : x
  2. Step 2: Convert to fraction form
    238,450.26/357,978.90 = 154,561.46/x
  3. Step 3: Cross multiply
    238,450.26x = 357,978.90 × 154,561.46
  4. Step 4: Simplify right side
    238,450.26x = 55,329,739,643.30
  5. Step 5: Solve for x
    x = 55,329,739,643.30/238,450.26
  6. Step 6: Final answer
    x = 232,038.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.