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Finding the Fourth Proportional to 94,009.60, 141,014.40 and 87,448.60

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Solution

The fourth proportional to 94,009.60, 141,014.40 and 87,448.60 is: 131,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,009.60 : 141,014.40 = 87,448.60 : x
  2. Step 2: Convert to fraction form
    94,009.60/141,014.40 = 87,448.60/x
  3. Step 3: Cross multiply
    94,009.60x = 141,014.40 × 87,448.60
  4. Step 4: Simplify right side
    94,009.60x = 12,331,511,859.84
  5. Step 5: Solve for x
    x = 12,331,511,859.84/94,009.60
  6. Step 6: Final answer
    x = 131,172.90

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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.