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Finding the Fourth Proportional to 306,213.69, 422,598.54 and 183,710.67

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Solution

The fourth proportional to 306,213.69, 422,598.54 and 183,710.67 is: 253,534.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,213.69 : 422,598.54 = 183,710.67 : x
  2. Step 2: Convert to fraction form
    306,213.69/422,598.54 = 183,710.67/x
  3. Step 3: Cross multiply
    306,213.69x = 422,598.54 × 183,710.67
  4. Step 4: Simplify right side
    306,213.69x = 77,635,860,924.42
  5. Step 5: Solve for x
    x = 77,635,860,924.42/306,213.69
  6. Step 6: Final answer
    x = 253,534.91

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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.