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Finding the Fourth Proportional to 157,223.80, 235,649.94 and 155,469.88

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Solution

The fourth proportional to 157,223.80, 235,649.94 and 155,469.88 is: 233,021.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,223.80 : 235,649.94 = 155,469.88 : x
  2. Step 2: Convert to fraction form
    157,223.80/235,649.94 = 155,469.88/x
  3. Step 3: Cross multiply
    157,223.80x = 235,649.94 × 155,469.88
  4. Step 4: Simplify right side
    157,223.80x = 36,636,467,893.81
  5. Step 5: Solve for x
    x = 36,636,467,893.81/157,223.80
  6. Step 6: Final answer
    x = 233,021.13

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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.