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Finding the Fourth Proportional to 124,508.34, 186,835.41 and 45,628.11

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Solution

The fourth proportional to 124,508.34, 186,835.41 and 45,628.11 is: 68,468.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,508.34 : 186,835.41 = 45,628.11 : x
  2. Step 2: Convert to fraction form
    124,508.34/186,835.41 = 45,628.11/x
  3. Step 3: Cross multiply
    124,508.34x = 186,835.41 × 45,628.11
  4. Step 4: Simplify right side
    124,508.34x = 8,524,946,639.38
  5. Step 5: Solve for x
    x = 8,524,946,639.38/124,508.34
  6. Step 6: Final answer
    x = 68,468.88

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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.