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Finding the Fourth Proportional to 61,798.50, 85,266.66 and 34,940.46

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Solution

The fourth proportional to 61,798.50, 85,266.66 and 34,940.46 is: 48,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,798.50 : 85,266.66 = 34,940.46 : x
  2. Step 2: Convert to fraction form
    61,798.50/85,266.66 = 34,940.46/x
  3. Step 3: Cross multiply
    61,798.50x = 85,266.66 × 34,940.46
  4. Step 4: Simplify right side
    61,798.50x = 2,979,256,323.06
  5. Step 5: Solve for x
    x = 2,979,256,323.06/61,798.50
  6. Step 6: Final answer
    x = 48,209.20

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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.