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Finding the Fourth Proportional to 375,280.35, 562,978.84 and 126,020.67

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Solution

The fourth proportional to 375,280.35, 562,978.84 and 126,020.67 is: 189,050.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,280.35 : 562,978.84 = 126,020.67 : x
  2. Step 2: Convert to fraction form
    375,280.35/562,978.84 = 126,020.67/x
  3. Step 3: Cross multiply
    375,280.35x = 562,978.84 × 126,020.67
  4. Step 4: Simplify right side
    375,280.35x = 70,946,967,167.63
  5. Step 5: Solve for x
    x = 70,946,967,167.63/375,280.35
  6. Step 6: Final answer
    x = 189,050.58

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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.