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Finding the Fourth Proportional to 86,673.21, 130,009.65 and 32,647.98

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Solution

The fourth proportional to 86,673.21, 130,009.65 and 32,647.98 is: 48,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,673.21 : 130,009.65 = 32,647.98 : x
  2. Step 2: Convert to fraction form
    86,673.21/130,009.65 = 32,647.98/x
  3. Step 3: Cross multiply
    86,673.21x = 130,009.65 × 32,647.98
  4. Step 4: Simplify right side
    86,673.21x = 4,244,552,453.01
  5. Step 5: Solve for x
    x = 4,244,552,453.01/86,673.21
  6. Step 6: Final answer
    x = 48,971.91

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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.