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Finding the Fourth Proportional to 366,072.40, 549,108.60 and 155,717.20

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Solution

The fourth proportional to 366,072.40, 549,108.60 and 155,717.20 is: 233,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,072.40 : 549,108.60 = 155,717.20 : x
  2. Step 2: Convert to fraction form
    366,072.40/549,108.60 = 155,717.20/x
  3. Step 3: Cross multiply
    366,072.40x = 549,108.60 × 155,717.20
  4. Step 4: Simplify right side
    366,072.40x = 85,505,653,687.92
  5. Step 5: Solve for x
    x = 85,505,653,687.92/366,072.40
  6. Step 6: Final answer
    x = 233,575.80

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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.