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Finding the Fourth Proportional to 110,014.80, 151,830.11 and 61,615.98

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Solution

The fourth proportional to 110,014.80, 151,830.11 and 61,615.98 is: 85,035.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,014.80 : 151,830.11 = 61,615.98 : x
  2. Step 2: Convert to fraction form
    110,014.80/151,830.11 = 61,615.98/x
  3. Step 3: Cross multiply
    110,014.80x = 151,830.11 × 61,615.98
  4. Step 4: Simplify right side
    110,014.80x = 9,355,161,021.16
  5. Step 5: Solve for x
    x = 9,355,161,021.16/110,014.80
  6. Step 6: Final answer
    x = 85,035.48

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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.