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Finding the Fourth Proportional to 104,715.96, 155,889.58 and 104,093.20

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Solution

The fourth proportional to 104,715.96, 155,889.58 and 104,093.20 is: 154,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,715.96 : 155,889.58 = 104,093.20 : x
  2. Step 2: Convert to fraction form
    104,715.96/155,889.58 = 104,093.20/x
  3. Step 3: Cross multiply
    104,715.96x = 155,889.58 × 104,093.20
  4. Step 4: Simplify right side
    104,715.96x = 16,227,045,228.86
  5. Step 5: Solve for x
    x = 16,227,045,228.86/104,715.96
  6. Step 6: Final answer
    x = 154,962.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.