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Finding the Fourth Proportional to 86,599.58, 130,018.73 and 59,879.93

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Solution

The fourth proportional to 86,599.58, 130,018.73 and 59,879.93 is: 89,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,599.58 : 130,018.73 = 59,879.93 : x
  2. Step 2: Convert to fraction form
    86,599.58/130,018.73 = 59,879.93/x
  3. Step 3: Cross multiply
    86,599.58x = 130,018.73 × 59,879.93
  4. Step 4: Simplify right side
    86,599.58x = 7,785,511,501.60
  5. Step 5: Solve for x
    x = 7,785,511,501.60/86,599.58
  6. Step 6: Final answer
    x = 89,902.42

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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.