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Finding the Fourth Proportional to 61,803.54, 85,290.68 and 34,945.48

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Solution

The fourth proportional to 61,803.54, 85,290.68 and 34,945.48 is: 48,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,803.54 : 85,290.68 = 34,945.48 : x
  2. Step 2: Convert to fraction form
    61,803.54/85,290.68 = 34,945.48/x
  3. Step 3: Cross multiply
    61,803.54x = 85,290.68 × 34,945.48
  4. Step 4: Simplify right side
    61,803.54x = 2,980,523,626.26
  5. Step 5: Solve for x
    x = 2,980,523,626.26/61,803.54
  6. Step 6: Final answer
    x = 48,225.78

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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.