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Finding the Fourth Proportional to 138,444.66, 207,578.27 and 58,460.96

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Solution

The fourth proportional to 138,444.66, 207,578.27 and 58,460.96 is: 87,653.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,444.66 : 207,578.27 = 58,460.96 : x
  2. Step 2: Convert to fraction form
    138,444.66/207,578.27 = 58,460.96/x
  3. Step 3: Cross multiply
    138,444.66x = 207,578.27 × 58,460.96
  4. Step 4: Simplify right side
    138,444.66x = 12,135,225,604.44
  5. Step 5: Solve for x
    x = 12,135,225,604.44/138,444.66
  6. Step 6: Final answer
    x = 87,653.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.