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Finding the Fourth Proportional to 201,341.78, 302,014.48 and 61,100.40

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Solution

The fourth proportional to 201,341.78, 302,014.48 and 61,100.40 is: 91,651.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,341.78 : 302,014.48 = 61,100.40 : x
  2. Step 2: Convert to fraction form
    201,341.78/302,014.48 = 61,100.40/x
  3. Step 3: Cross multiply
    201,341.78x = 302,014.48 × 61,100.40
  4. Step 4: Simplify right side
    201,341.78x = 18,453,205,533.79
  5. Step 5: Solve for x
    x = 18,453,205,533.79/201,341.78
  6. Step 6: Final answer
    x = 91,651.15

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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.