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Finding the Fourth Proportional to 368,374, 552,439.50 and 118,997.68

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Solution

The fourth proportional to 368,374, 552,439.50 and 118,997.68 is: 178,457.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,374 : 552,439.50 = 118,997.68 : x
  2. Step 2: Convert to fraction form
    368,374/552,439.50 = 118,997.68/x
  3. Step 3: Cross multiply
    368,374x = 552,439.50 × 118,997.68
  4. Step 4: Simplify right side
    368,374x = 65,739,018,840.36
  5. Step 5: Solve for x
    x = 65,739,018,840.36/368,374
  6. Step 6: Final answer
    x = 178,457.27

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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.