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Finding the Fourth Proportional to 114,475.84, 157,992.79 and 63,499.90

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Solution

The fourth proportional to 114,475.84, 157,992.79 and 63,499.90 is: 87,638.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,475.84 : 157,992.79 = 63,499.90 : x
  2. Step 2: Convert to fraction form
    114,475.84/157,992.79 = 63,499.90/x
  3. Step 3: Cross multiply
    114,475.84x = 157,992.79 × 63,499.90
  4. Step 4: Simplify right side
    114,475.84x = 10,032,526,365.72
  5. Step 5: Solve for x
    x = 10,032,526,365.72/114,475.84
  6. Step 6: Final answer
    x = 87,638.81

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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.