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Finding the Fourth Proportional to 64,854.42, 89,497.31 and 36,174.93

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Solution

The fourth proportional to 64,854.42, 89,497.31 and 36,174.93 is: 49,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,854.42 : 89,497.31 = 36,174.93 : x
  2. Step 2: Convert to fraction form
    64,854.42/89,497.31 = 36,174.93/x
  3. Step 3: Cross multiply
    64,854.42x = 89,497.31 × 36,174.93
  4. Step 4: Simplify right side
    64,854.42x = 3,237,558,743.56
  5. Step 5: Solve for x
    x = 3,237,558,743.56/64,854.42
  6. Step 6: Final answer
    x = 49,920.40

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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.