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Finding the Fourth Proportional to 290,751.66, 436,312.26 and 150,510.42

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Solution

The fourth proportional to 290,751.66, 436,312.26 and 150,510.42 is: 225,861.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,751.66 : 436,312.26 = 150,510.42 : x
  2. Step 2: Convert to fraction form
    290,751.66/436,312.26 = 150,510.42/x
  3. Step 3: Cross multiply
    290,751.66x = 436,312.26 × 150,510.42
  4. Step 4: Simplify right side
    290,751.66x = 65,669,541,503.75
  5. Step 5: Solve for x
    x = 65,669,541,503.75/290,751.66
  6. Step 6: Final answer
    x = 225,861.28

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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.