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Finding the Fourth Proportional to 348,181.20, 522,271.80 and 98,830.80

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Solution

The fourth proportional to 348,181.20, 522,271.80 and 98,830.80 is: 148,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,181.20 : 522,271.80 = 98,830.80 : x
  2. Step 2: Convert to fraction form
    348,181.20/522,271.80 = 98,830.80/x
  3. Step 3: Cross multiply
    348,181.20x = 522,271.80 × 98,830.80
  4. Step 4: Simplify right side
    348,181.20x = 51,616,539,811.44
  5. Step 5: Solve for x
    x = 51,616,539,811.44/348,181.20
  6. Step 6: Final answer
    x = 148,246.20

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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.