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Finding the Fourth Proportional to 342,670.96, 473,100.24 and 220,213

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Solution

The fourth proportional to 342,670.96, 473,100.24 and 220,213 is: 304,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,670.96 : 473,100.24 = 220,213 : x
  2. Step 2: Convert to fraction form
    342,670.96/473,100.24 = 220,213/x
  3. Step 3: Cross multiply
    342,670.96x = 473,100.24 × 220,213
  4. Step 4: Simplify right side
    342,670.96x = 104,182,823,151.12
  5. Step 5: Solve for x
    x = 104,182,823,151.12/342,670.96
  6. Step 6: Final answer
    x = 304,031.67

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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.