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Finding the Fourth Proportional to 45,762.48, 68,339.16 and 45,267.66

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Solution

The fourth proportional to 45,762.48, 68,339.16 and 45,267.66 is: 67,600.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,762.48 : 68,339.16 = 45,267.66 : x
  2. Step 2: Convert to fraction form
    45,762.48/68,339.16 = 45,267.66/x
  3. Step 3: Cross multiply
    45,762.48x = 68,339.16 × 45,267.66
  4. Step 4: Simplify right side
    45,762.48x = 3,093,553,859.57
  5. Step 5: Solve for x
    x = 3,093,553,859.57/45,762.48
  6. Step 6: Final answer
    x = 67,600.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.