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Finding the Fourth Proportional to 265,430.80, 398,760.60 and 182,486.80

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Solution

The fourth proportional to 265,430.80, 398,760.60 and 182,486.80 is: 274,152.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,430.80 : 398,760.60 = 182,486.80 : x
  2. Step 2: Convert to fraction form
    265,430.80/398,760.60 = 182,486.80/x
  3. Step 3: Cross multiply
    265,430.80x = 398,760.60 × 182,486.80
  4. Step 4: Simplify right side
    265,430.80x = 72,768,545,860.08
  5. Step 5: Solve for x
    x = 72,768,545,860.08/265,430.80
  6. Step 6: Final answer
    x = 274,152.61

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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.