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Finding the Fourth Proportional to 366,410.84, 549,617.49 and 129,760.43

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Solution

The fourth proportional to 366,410.84, 549,617.49 and 129,760.43 is: 194,641.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,410.84 : 549,617.49 = 129,760.43 : x
  2. Step 2: Convert to fraction form
    366,410.84/549,617.49 = 129,760.43/x
  3. Step 3: Cross multiply
    366,410.84x = 549,617.49 × 129,760.43
  4. Step 4: Simplify right side
    366,410.84x = 71,318,599,089.83
  5. Step 5: Solve for x
    x = 71,318,599,089.83/366,410.84
  6. Step 6: Final answer
    x = 194,641.08

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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.