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Finding the Fourth Proportional to 403,176.60, 604,620.80 and 133,254.80

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Solution

The fourth proportional to 403,176.60, 604,620.80 and 133,254.80 is: 199,834.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,176.60 : 604,620.80 = 133,254.80 : x
  2. Step 2: Convert to fraction form
    403,176.60/604,620.80 = 133,254.80/x
  3. Step 3: Cross multiply
    403,176.60x = 604,620.80 × 133,254.80
  4. Step 4: Simplify right side
    403,176.60x = 80,568,623,779.84
  5. Step 5: Solve for x
    x = 80,568,623,779.84/403,176.60
  6. Step 6: Final answer
    x = 199,834.57

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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.