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Finding the Fourth Proportional to 85,042.66, 117,343.74 and 49,230.94

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Solution

The fourth proportional to 85,042.66, 117,343.74 and 49,230.94 is: 67,929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,042.66 : 117,343.74 = 49,230.94 : x
  2. Step 2: Convert to fraction form
    85,042.66/117,343.74 = 49,230.94/x
  3. Step 3: Cross multiply
    85,042.66x = 117,343.74 × 49,230.94
  4. Step 4: Simplify right side
    85,042.66x = 5,776,942,623.32
  5. Step 5: Solve for x
    x = 5,776,942,623.32/85,042.66
  6. Step 6: Final answer
    x = 67,929.94

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1.5x scale

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.