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Finding the Fourth Proportional to 155,902.86, 233,830.80 and 43,571.28

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Solution

The fourth proportional to 155,902.86, 233,830.80 and 43,571.28 is: 65,350.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,902.86 : 233,830.80 = 43,571.28 : x
  2. Step 2: Convert to fraction form
    155,902.86/233,830.80 = 43,571.28/x
  3. Step 3: Cross multiply
    155,902.86x = 233,830.80 × 43,571.28
  4. Step 4: Simplify right side
    155,902.86x = 10,188,307,259.42
  5. Step 5: Solve for x
    x = 10,188,307,259.42/155,902.86
  6. Step 6: Final answer
    x = 65,350.36

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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.