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Finding the Fourth Proportional to 64,898.43, 89,600.38 and 49,762.01

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Solution

The fourth proportional to 64,898.43, 89,600.38 and 49,762.01 is: 68,702.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,898.43 : 89,600.38 = 49,762.01 : x
  2. Step 2: Convert to fraction form
    64,898.43/89,600.38 = 49,762.01/x
  3. Step 3: Cross multiply
    64,898.43x = 89,600.38 × 49,762.01
  4. Step 4: Simplify right side
    64,898.43x = 4,458,695,105.16
  5. Step 5: Solve for x
    x = 4,458,695,105.16/64,898.43
  6. Step 6: Final answer
    x = 68,702.66

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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.