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Finding the Fourth Proportional to 68,364.48, 102,423.48 and 64,247.28

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Solution

The fourth proportional to 68,364.48, 102,423.48 and 64,247.28 is: 96,255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,364.48 : 102,423.48 = 64,247.28 : x
  2. Step 2: Convert to fraction form
    68,364.48/102,423.48 = 64,247.28/x
  3. Step 3: Cross multiply
    68,364.48x = 102,423.48 × 64,247.28
  4. Step 4: Simplify right side
    68,364.48x = 6,580,429,998.13
  5. Step 5: Solve for x
    x = 6,580,429,998.13/68,364.48
  6. Step 6: Final answer
    x = 96,255.10

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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.