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Finding the Fourth Proportional to 144,379.85, 216,424.34 and 60,186.59

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Solution

The fourth proportional to 144,379.85, 216,424.34 and 60,186.59 is: 90,219.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,379.85 : 216,424.34 = 60,186.59 : x
  2. Step 2: Convert to fraction form
    144,379.85/216,424.34 = 60,186.59/x
  3. Step 3: Cross multiply
    144,379.85x = 216,424.34 × 60,186.59
  4. Step 4: Simplify right side
    144,379.85x = 13,025,841,634.55
  5. Step 5: Solve for x
    x = 13,025,841,634.55/144,379.85
  6. Step 6: Final answer
    x = 90,219.25

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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.