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Finding the Fourth Proportional to 228,143.88, 342,186.60 and 94,999.32

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Solution

The fourth proportional to 228,143.88, 342,186.60 and 94,999.32 is: 142,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,143.88 : 342,186.60 = 94,999.32 : x
  2. Step 2: Convert to fraction form
    228,143.88/342,186.60 = 94,999.32/x
  3. Step 3: Cross multiply
    228,143.88x = 342,186.60 × 94,999.32
  4. Step 4: Simplify right side
    228,143.88x = 32,507,494,313.11
  5. Step 5: Solve for x
    x = 32,507,494,313.11/228,143.88
  6. Step 6: Final answer
    x = 142,486.81

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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.