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Finding the Fourth Proportional to 295,431.90, 443,257.20 and 118,066.20

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Solution

The fourth proportional to 295,431.90, 443,257.20 and 118,066.20 is: 177,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,431.90 : 443,257.20 = 118,066.20 : x
  2. Step 2: Convert to fraction form
    295,431.90/443,257.20 = 118,066.20/x
  3. Step 3: Cross multiply
    295,431.90x = 443,257.20 × 118,066.20
  4. Step 4: Simplify right side
    295,431.90x = 52,333,693,226.64
  5. Step 5: Solve for x
    x = 52,333,693,226.64/295,431.90
  6. Step 6: Final answer
    x = 177,143.00

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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.