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Finding the Fourth Proportional to 114,774.86, 172,172.22 and 31,668.86

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Solution

The fourth proportional to 114,774.86, 172,172.22 and 31,668.86 is: 47,506.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,774.86 : 172,172.22 = 31,668.86 : x
  2. Step 2: Convert to fraction form
    114,774.86/172,172.22 = 31,668.86/x
  3. Step 3: Cross multiply
    114,774.86x = 172,172.22 × 31,668.86
  4. Step 4: Simplify right side
    114,774.86x = 5,452,497,931.07
  5. Step 5: Solve for x
    x = 5,452,497,931.07/114,774.86
  6. Step 6: Final answer
    x = 47,506.03

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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.