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Finding the Fourth Proportional to 143,044.40, 214,566.60 and 118,112.60

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Solution

The fourth proportional to 143,044.40, 214,566.60 and 118,112.60 is: 177,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,044.40 : 214,566.60 = 118,112.60 : x
  2. Step 2: Convert to fraction form
    143,044.40/214,566.60 = 118,112.60/x
  3. Step 3: Cross multiply
    143,044.40x = 214,566.60 × 118,112.60
  4. Step 4: Simplify right side
    143,044.40x = 25,343,018,999.16
  5. Step 5: Solve for x
    x = 25,343,018,999.16/143,044.40
  6. Step 6: Final answer
    x = 177,168.90

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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.