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Finding the Fourth Proportional to 243,489.90, 364,986.45 and 164,612.10

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Solution

The fourth proportional to 243,489.90, 364,986.45 and 164,612.10 is: 246,750.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,489.90 : 364,986.45 = 164,612.10 : x
  2. Step 2: Convert to fraction form
    243,489.90/364,986.45 = 164,612.10/x
  3. Step 3: Cross multiply
    243,489.90x = 364,986.45 × 164,612.10
  4. Step 4: Simplify right side
    243,489.90x = 60,081,186,006.05
  5. Step 5: Solve for x
    x = 60,081,186,006.05/243,489.90
  6. Step 6: Final answer
    x = 246,750.22

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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.