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Finding the Fourth Proportional to 373,294.80, 559,942.20 and 136,807.20

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Solution

The fourth proportional to 373,294.80, 559,942.20 and 136,807.20 is: 205,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,294.80 : 559,942.20 = 136,807.20 : x
  2. Step 2: Convert to fraction form
    373,294.80/559,942.20 = 136,807.20/x
  3. Step 3: Cross multiply
    373,294.80x = 559,942.20 × 136,807.20
  4. Step 4: Simplify right side
    373,294.80x = 76,604,124,543.84
  5. Step 5: Solve for x
    x = 76,604,124,543.84/373,294.80
  6. Step 6: Final answer
    x = 205,210.80

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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.