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Finding the Fourth Proportional to 156,955.65, 234,941.40 and 112,668.90

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Solution

The fourth proportional to 156,955.65, 234,941.40 and 112,668.90 is: 168,650.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,955.65 : 234,941.40 = 112,668.90 : x
  2. Step 2: Convert to fraction form
    156,955.65/234,941.40 = 112,668.90/x
  3. Step 3: Cross multiply
    156,955.65x = 234,941.40 × 112,668.90
  4. Step 4: Simplify right side
    156,955.65x = 26,470,589,102.46
  5. Step 5: Solve for x
    x = 26,470,589,102.46/156,955.65
  6. Step 6: Final answer
    x = 168,650.12

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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.