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Finding the Fourth Proportional to 127,968.63, 192,068.67 and 64,832.37

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Solution

The fourth proportional to 127,968.63, 192,068.67 and 64,832.37 is: 97,307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,968.63 : 192,068.67 = 64,832.37 : x
  2. Step 2: Convert to fraction form
    127,968.63/192,068.67 = 64,832.37/x
  3. Step 3: Cross multiply
    127,968.63x = 192,068.67 × 64,832.37
  4. Step 4: Simplify right side
    127,968.63x = 12,452,267,078.85
  5. Step 5: Solve for x
    x = 12,452,267,078.85/127,968.63
  6. Step 6: Final answer
    x = 97,307.18

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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.