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Finding the Fourth Proportional to 236,704.48, 355,114.13 and 78,945.23

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Solution

The fourth proportional to 236,704.48, 355,114.13 and 78,945.23 is: 118,437.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,704.48 : 355,114.13 = 78,945.23 : x
  2. Step 2: Convert to fraction form
    236,704.48/355,114.13 = 78,945.23/x
  3. Step 3: Cross multiply
    236,704.48x = 355,114.13 × 78,945.23
  4. Step 4: Simplify right side
    236,704.48x = 28,034,567,162.16
  5. Step 5: Solve for x
    x = 28,034,567,162.16/236,704.48
  6. Step 6: Final answer
    x = 118,437.00

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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.