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Finding the Fourth Proportional to 68,072.64, 102,030.72 and 26,484.48

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Solution

The fourth proportional to 68,072.64, 102,030.72 and 26,484.48 is: 39,696.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,072.64 : 102,030.72 = 26,484.48 : x
  2. Step 2: Convert to fraction form
    68,072.64/102,030.72 = 26,484.48/x
  3. Step 3: Cross multiply
    68,072.64x = 102,030.72 × 26,484.48
  4. Step 4: Simplify right side
    68,072.64x = 2,702,230,563.23
  5. Step 5: Solve for x
    x = 2,702,230,563.23/68,072.64
  6. Step 6: Final answer
    x = 39,696.28

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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.