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Finding the Fourth Proportional to 298,038.78, 446,080.84 and 162,895.85

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Solution

The fourth proportional to 298,038.78, 446,080.84 and 162,895.85 is: 243,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,038.78 : 446,080.84 = 162,895.85 : x
  2. Step 2: Convert to fraction form
    298,038.78/446,080.84 = 162,895.85/x
  3. Step 3: Cross multiply
    298,038.78x = 446,080.84 × 162,895.85
  4. Step 4: Simplify right side
    298,038.78x = 72,664,716,635.67
  5. Step 5: Solve for x
    x = 72,664,716,635.67/298,038.78
  6. Step 6: Final answer
    x = 243,809.60

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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.