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Finding the Fourth Proportional to 368,499.16, 552,551.82 and 131,712.64

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Solution

The fourth proportional to 368,499.16, 552,551.82 and 131,712.64 is: 197,498.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,499.16 : 552,551.82 = 131,712.64 : x
  2. Step 2: Convert to fraction form
    368,499.16/552,551.82 = 131,712.64/x
  3. Step 3: Cross multiply
    368,499.16x = 552,551.82 × 131,712.64
  4. Step 4: Simplify right side
    368,499.16x = 72,778,058,949.00
  5. Step 5: Solve for x
    x = 72,778,058,949.00/368,499.16
  6. Step 6: Final answer
    x = 197,498.57

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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.