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Finding the Fourth Proportional to 368,353.60, 552,391.52 and 118,968.64

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Solution

The fourth proportional to 368,353.60, 552,391.52 and 118,968.64 is: 178,408.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,353.60 : 552,391.52 = 118,968.64 : x
  2. Step 2: Convert to fraction form
    368,353.60/552,391.52 = 118,968.64/x
  3. Step 3: Cross multiply
    368,353.60x = 552,391.52 × 118,968.64
  4. Step 4: Simplify right side
    368,353.60x = 65,717,267,881.93
  5. Step 5: Solve for x
    x = 65,717,267,881.93/368,353.60
  6. Step 6: Final answer
    x = 178,408.11

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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.