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Finding the Fourth Proportional to 76,030.01, 104,916.92 and 42,035.82

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Solution

The fourth proportional to 76,030.01, 104,916.92 and 42,035.82 is: 58,006.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,030.01 : 104,916.92 = 42,035.82 : x
  2. Step 2: Convert to fraction form
    76,030.01/104,916.92 = 42,035.82/x
  3. Step 3: Cross multiply
    76,030.01x = 104,916.92 × 42,035.82
  4. Step 4: Simplify right side
    76,030.01x = 4,410,268,553.90
  5. Step 5: Solve for x
    x = 4,410,268,553.90/76,030.01
  6. Step 6: Final answer
    x = 58,006.95

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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.