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Finding the Fourth Proportional to 68,959.92, 95,204.60 and 45,128.19

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Solution

The fourth proportional to 68,959.92, 95,204.60 and 45,128.19 is: 62,303.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,959.92 : 95,204.60 = 45,128.19 : x
  2. Step 2: Convert to fraction form
    68,959.92/95,204.60 = 45,128.19/x
  3. Step 3: Cross multiply
    68,959.92x = 95,204.60 × 45,128.19
  4. Step 4: Simplify right side
    68,959.92x = 4,296,411,277.67
  5. Step 5: Solve for x
    x = 4,296,411,277.67/68,959.92
  6. Step 6: Final answer
    x = 62,303.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.