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Finding the Fourth Proportional to 96,090.30, 144,135.45 and 91,497.60

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Solution

The fourth proportional to 96,090.30, 144,135.45 and 91,497.60 is: 137,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,090.30 : 144,135.45 = 91,497.60 : x
  2. Step 2: Convert to fraction form
    96,090.30/144,135.45 = 91,497.60/x
  3. Step 3: Cross multiply
    96,090.30x = 144,135.45 × 91,497.60
  4. Step 4: Simplify right side
    96,090.30x = 13,188,047,749.92
  5. Step 5: Solve for x
    x = 13,188,047,749.92/96,090.30
  6. Step 6: Final answer
    x = 137,246.40

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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.