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Finding the Fourth Proportional to 370,815.84, 555,778.80 and 170,861.76

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Solution

The fourth proportional to 370,815.84, 555,778.80 and 170,861.76 is: 256,087.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,815.84 : 555,778.80 = 170,861.76 : x
  2. Step 2: Convert to fraction form
    370,815.84/555,778.80 = 170,861.76/x
  3. Step 3: Cross multiply
    370,815.84x = 555,778.80 × 170,861.76
  4. Step 4: Simplify right side
    370,815.84x = 94,961,343,938.69
  5. Step 5: Solve for x
    x = 94,961,343,938.69/370,815.84
  6. Step 6: Final answer
    x = 256,087.61

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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.