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Finding the Fourth Proportional to 99,370.44, 137,127.06 and 56,932.92

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Solution

The fourth proportional to 99,370.44, 137,127.06 and 56,932.92 is: 78,565.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,370.44 : 137,127.06 = 56,932.92 : x
  2. Step 2: Convert to fraction form
    99,370.44/137,127.06 = 56,932.92/x
  3. Step 3: Cross multiply
    99,370.44x = 137,127.06 × 56,932.92
  4. Step 4: Simplify right side
    99,370.44x = 7,807,043,936.82
  5. Step 5: Solve for x
    x = 7,807,043,936.82/99,370.44
  6. Step 6: Final answer
    x = 78,565.05

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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.