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Finding the Fourth Proportional to 99,007.92, 136,601.64 and 56,563.92

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Solution

The fourth proportional to 99,007.92, 136,601.64 and 56,563.92 is: 78,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,007.92 : 136,601.64 = 56,563.92 : x
  2. Step 2: Convert to fraction form
    99,007.92/136,601.64 = 56,563.92/x
  3. Step 3: Cross multiply
    99,007.92x = 136,601.64 × 56,563.92
  4. Step 4: Simplify right side
    99,007.92x = 7,726,724,236.83
  5. Step 5: Solve for x
    x = 7,726,724,236.83/99,007.92
  6. Step 6: Final answer
    x = 78,041.48

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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.