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Finding the Fourth Proportional to 243,490.63, 365,272.27 and 74,996.84

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Solution

The fourth proportional to 243,490.63, 365,272.27 and 74,996.84 is: 112,506.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,490.63 : 365,272.27 = 74,996.84 : x
  2. Step 2: Convert to fraction form
    243,490.63/365,272.27 = 74,996.84/x
  3. Step 3: Cross multiply
    243,490.63x = 365,272.27 × 74,996.84
  4. Step 4: Simplify right side
    243,490.63x = 27,394,267,169.89
  5. Step 5: Solve for x
    x = 27,394,267,169.89/243,490.63
  6. Step 6: Final answer
    x = 112,506.45

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1.5x scale

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.