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Finding the Fourth Proportional to 68,071.63, 102,093.98 and 64,696.05

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Solution

The fourth proportional to 68,071.63, 102,093.98 and 64,696.05 is: 97,031.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,071.63 : 102,093.98 = 64,696.05 : x
  2. Step 2: Convert to fraction form
    68,071.63/102,093.98 = 64,696.05/x
  3. Step 3: Cross multiply
    68,071.63x = 102,093.98 × 64,696.05
  4. Step 4: Simplify right side
    68,071.63x = 6,605,077,234.78
  5. Step 5: Solve for x
    x = 6,605,077,234.78/68,071.63
  6. Step 6: Final answer
    x = 97,031.28

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1.5x scale

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.