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Finding the Fourth Proportional to 367,431.56, 551,005.64 and 142,762.41

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Solution

The fourth proportional to 367,431.56, 551,005.64 and 142,762.41 is: 214,088.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,431.56 : 551,005.64 = 142,762.41 : x
  2. Step 2: Convert to fraction form
    367,431.56/551,005.64 = 142,762.41/x
  3. Step 3: Cross multiply
    367,431.56x = 551,005.64 × 142,762.41
  4. Step 4: Simplify right side
    367,431.56x = 78,662,892,376.18
  5. Step 5: Solve for x
    x = 78,662,892,376.18/367,431.56
  6. Step 6: Final answer
    x = 214,088.56

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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.