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Finding the Fourth Proportional to 207,078.80, 310,618.20 and 183,459.20

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Solution

The fourth proportional to 207,078.80, 310,618.20 and 183,459.20 is: 275,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,078.80 : 310,618.20 = 183,459.20 : x
  2. Step 2: Convert to fraction form
    207,078.80/310,618.20 = 183,459.20/x
  3. Step 3: Cross multiply
    207,078.80x = 310,618.20 × 183,459.20
  4. Step 4: Simplify right side
    207,078.80x = 56,985,766,477.44
  5. Step 5: Solve for x
    x = 56,985,766,477.44/207,078.80
  6. Step 6: Final answer
    x = 275,188.80

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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.