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Finding the Fourth Proportional to 114,530.70, 171,925.65 and 67,809.90

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Solution

The fourth proportional to 114,530.70, 171,925.65 and 67,809.90 is: 101,791.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,530.70 : 171,925.65 = 67,809.90 : x
  2. Step 2: Convert to fraction form
    114,530.70/171,925.65 = 67,809.90/x
  3. Step 3: Cross multiply
    114,530.70x = 171,925.65 × 67,809.90
  4. Step 4: Simplify right side
    114,530.70x = 11,658,261,133.94
  5. Step 5: Solve for x
    x = 11,658,261,133.94/114,530.70
  6. Step 6: Final answer
    x = 101,791.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.