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Finding the Fourth Proportional to 243,077.40, 365,004.90 and 164,539.80

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Solution

The fourth proportional to 243,077.40, 365,004.90 and 164,539.80 is: 247,072.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,077.40 : 365,004.90 = 164,539.80 : x
  2. Step 2: Convert to fraction form
    243,077.40/365,004.90 = 164,539.80/x
  3. Step 3: Cross multiply
    243,077.40x = 365,004.90 × 164,539.80
  4. Step 4: Simplify right side
    243,077.40x = 60,057,833,245.02
  5. Step 5: Solve for x
    x = 60,057,833,245.02/243,077.40
  6. Step 6: Final answer
    x = 247,072.88

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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.