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Finding the Fourth Proportional to 136,117.80, 203,739.30 and 96,751.80

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Solution

The fourth proportional to 136,117.80, 203,739.30 and 96,751.80 is: 144,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,117.80 : 203,739.30 = 96,751.80 : x
  2. Step 2: Convert to fraction form
    136,117.80/203,739.30 = 96,751.80/x
  3. Step 3: Cross multiply
    136,117.80x = 203,739.30 × 96,751.80
  4. Step 4: Simplify right side
    136,117.80x = 19,712,144,005.74
  5. Step 5: Solve for x
    x = 19,712,144,005.74/136,117.80
  6. Step 6: Final answer
    x = 144,816.80

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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.