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Finding the Fourth Proportional to 58,676.18, 80,943.12 and 37,129.67

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Solution

The fourth proportional to 58,676.18, 80,943.12 and 37,129.67 is: 51,219.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,676.18 : 80,943.12 = 37,129.67 : x
  2. Step 2: Convert to fraction form
    58,676.18/80,943.12 = 37,129.67/x
  3. Step 3: Cross multiply
    58,676.18x = 80,943.12 × 37,129.67
  4. Step 4: Simplify right side
    58,676.18x = 3,005,390,929.65
  5. Step 5: Solve for x
    x = 3,005,390,929.65/58,676.18
  6. Step 6: Final answer
    x = 51,219.95

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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.