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Finding the Fourth Proportional to 64,898.93, 89,601.07 and 49,762.52

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Solution

The fourth proportional to 64,898.93, 89,601.07 and 49,762.52 is: 68,703.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,898.93 : 89,601.07 = 49,762.52 : x
  2. Step 2: Convert to fraction form
    64,898.93/89,601.07 = 49,762.52/x
  3. Step 3: Cross multiply
    64,898.93x = 89,601.07 × 49,762.52
  4. Step 4: Simplify right side
    64,898.93x = 4,458,774,589.89
  5. Step 5: Solve for x
    x = 4,458,774,589.89/64,898.93
  6. Step 6: Final answer
    x = 68,703.36

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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.