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Finding the Fourth Proportional to 368,498.16, 552,550.32 and 131,711.64

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Solution

The fourth proportional to 368,498.16, 552,550.32 and 131,711.64 is: 197,497.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,498.16 : 552,550.32 = 131,711.64 : x
  2. Step 2: Convert to fraction form
    368,498.16/552,550.32 = 131,711.64/x
  3. Step 3: Cross multiply
    368,498.16x = 552,550.32 × 131,711.64
  4. Step 4: Simplify right side
    368,498.16x = 72,777,308,829.72
  5. Step 5: Solve for x
    x = 72,777,308,829.72/368,498.16
  6. Step 6: Final answer
    x = 197,497.08

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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.