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Finding the Fourth Proportional to 99,659.60, 149,489.40 and 94,216.40

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Solution

The fourth proportional to 99,659.60, 149,489.40 and 94,216.40 is: 141,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,659.60 : 149,489.40 = 94,216.40 : x
  2. Step 2: Convert to fraction form
    99,659.60/149,489.40 = 94,216.40/x
  3. Step 3: Cross multiply
    99,659.60x = 149,489.40 × 94,216.40
  4. Step 4: Simplify right side
    99,659.60x = 14,084,353,106.16
  5. Step 5: Solve for x
    x = 14,084,353,106.16/99,659.60
  6. Step 6: Final answer
    x = 141,324.60

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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.