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Finding the Fourth Proportional to 236,720.40, 354,907.80 and 96,406.80

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Solution

The fourth proportional to 236,720.40, 354,907.80 and 96,406.80 is: 144,539.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,720.40 : 354,907.80 = 96,406.80 : x
  2. Step 2: Convert to fraction form
    236,720.40/354,907.80 = 96,406.80/x
  3. Step 3: Cross multiply
    236,720.40x = 354,907.80 × 96,406.80
  4. Step 4: Simplify right side
    236,720.40x = 34,215,525,293.04
  5. Step 5: Solve for x
    x = 34,215,525,293.04/236,720.40
  6. Step 6: Final answer
    x = 144,539.83

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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.