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Finding the Fourth Proportional to 349,916.60, 525,134.10 and 256,604.60

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Solution

The fourth proportional to 349,916.60, 525,134.10 and 256,604.60 is: 385,096.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,916.60 : 525,134.10 = 256,604.60 : x
  2. Step 2: Convert to fraction form
    349,916.60/525,134.10 = 256,604.60/x
  3. Step 3: Cross multiply
    349,916.60x = 525,134.10 × 256,604.60
  4. Step 4: Simplify right side
    349,916.60x = 134,751,825,676.86
  5. Step 5: Solve for x
    x = 134,751,825,676.86/349,916.60
  6. Step 6: Final answer
    x = 385,096.98

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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.