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Finding the Fourth Proportional to 64,095.65, 96,168.09 and 45,138.47

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Solution

The fourth proportional to 64,095.65, 96,168.09 and 45,138.47 is: 67,725.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,095.65 : 96,168.09 = 45,138.47 : x
  2. Step 2: Convert to fraction form
    64,095.65/96,168.09 = 45,138.47/x
  3. Step 3: Cross multiply
    64,095.65x = 96,168.09 × 45,138.47
  4. Step 4: Simplify right side
    64,095.65x = 4,340,880,445.42
  5. Step 5: Solve for x
    x = 4,340,880,445.42/64,095.65
  6. Step 6: Final answer
    x = 67,725.04

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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.