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Finding the Fourth Proportional to 114,328.90, 171,493.35 and 112,141.90

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Solution

The fourth proportional to 114,328.90, 171,493.35 and 112,141.90 is: 168,212.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,328.90 : 171,493.35 = 112,141.90 : x
  2. Step 2: Convert to fraction form
    114,328.90/171,493.35 = 112,141.90/x
  3. Step 3: Cross multiply
    114,328.90x = 171,493.35 × 112,141.90
  4. Step 4: Simplify right side
    114,328.90x = 19,231,590,106.37
  5. Step 5: Solve for x
    x = 19,231,590,106.37/114,328.90
  6. Step 6: Final answer
    x = 168,212.85

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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.