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Finding the Fourth Proportional to 238,647.90, 358,008.76 and 148,621.76

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Solution

The fourth proportional to 238,647.90, 358,008.76 and 148,621.76 is: 222,955.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,647.90 : 358,008.76 = 148,621.76 : x
  2. Step 2: Convert to fraction form
    238,647.90/358,008.76 = 148,621.76/x
  3. Step 3: Cross multiply
    238,647.90x = 358,008.76 × 148,621.76
  4. Step 4: Simplify right side
    238,647.90x = 53,207,891,744.88
  5. Step 5: Solve for x
    x = 53,207,891,744.88/238,647.90
  6. Step 6: Final answer
    x = 222,955.62

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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.