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Finding the Fourth Proportional to 373,430.80, 560,081.40 and 136,651.60

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Solution

The fourth proportional to 373,430.80, 560,081.40 and 136,651.60 is: 204,953.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,430.80 : 560,081.40 = 136,651.60 : x
  2. Step 2: Convert to fraction form
    373,430.80/560,081.40 = 136,651.60/x
  3. Step 3: Cross multiply
    373,430.80x = 560,081.40 × 136,651.60
  4. Step 4: Simplify right side
    373,430.80x = 76,536,019,440.24
  5. Step 5: Solve for x
    x = 76,536,019,440.24/373,430.80
  6. Step 6: Final answer
    x = 204,953.69

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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.