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Finding the Fourth Proportional to 311,342.34, 429,662.97 and 184,126.98

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Solution

The fourth proportional to 311,342.34, 429,662.97 and 184,126.98 is: 254,101.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,342.34 : 429,662.97 = 184,126.98 : x
  2. Step 2: Convert to fraction form
    311,342.34/429,662.97 = 184,126.98/x
  3. Step 3: Cross multiply
    311,342.34x = 429,662.97 × 184,126.98
  4. Step 4: Simplify right side
    311,342.34x = 79,112,545,083.93
  5. Step 5: Solve for x
    x = 79,112,545,083.93/311,342.34
  6. Step 6: Final answer
    x = 254,101.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.