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Finding the Fourth Proportional to 68,485.30, 94,569.83 and 43,035.76

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Solution

The fourth proportional to 68,485.30, 94,569.83 and 43,035.76 is: 59,427.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,485.30 : 94,569.83 = 43,035.76 : x
  2. Step 2: Convert to fraction form
    68,485.30/94,569.83 = 43,035.76/x
  3. Step 3: Cross multiply
    68,485.30x = 94,569.83 × 43,035.76
  4. Step 4: Simplify right side
    68,485.30x = 4,069,884,039.58
  5. Step 5: Solve for x
    x = 4,069,884,039.58/68,485.30
  6. Step 6: Final answer
    x = 59,427.12

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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.