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Finding the Fourth Proportional to 68,485.77, 94,536.72 and 61,303.03

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Solution

The fourth proportional to 68,485.77, 94,536.72 and 61,303.03 is: 84,621.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,485.77 : 94,536.72 = 61,303.03 : x
  2. Step 2: Convert to fraction form
    68,485.77/94,536.72 = 61,303.03/x
  3. Step 3: Cross multiply
    68,485.77x = 94,536.72 × 61,303.03
  4. Step 4: Simplify right side
    68,485.77x = 5,795,387,145.92
  5. Step 5: Solve for x
    x = 5,795,387,145.92/68,485.77
  6. Step 6: Final answer
    x = 84,621.77

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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.