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Finding the Fourth Proportional to 372,661.80, 558,992.70 and 195,223.20

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Solution

The fourth proportional to 372,661.80, 558,992.70 and 195,223.20 is: 292,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,661.80 : 558,992.70 = 195,223.20 : x
  2. Step 2: Convert to fraction form
    372,661.80/558,992.70 = 195,223.20/x
  3. Step 3: Cross multiply
    372,661.80x = 558,992.70 × 195,223.20
  4. Step 4: Simplify right side
    372,661.80x = 109,128,343,670.64
  5. Step 5: Solve for x
    x = 109,128,343,670.64/372,661.80
  6. Step 6: Final answer
    x = 292,834.80

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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.