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Finding the Fourth Proportional to 155,673.70, 233,478.15 and 43,324.90

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Solution

The fourth proportional to 155,673.70, 233,478.15 and 43,324.90 is: 64,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,673.70 : 233,478.15 = 43,324.90 : x
  2. Step 2: Convert to fraction form
    155,673.70/233,478.15 = 43,324.90/x
  3. Step 3: Cross multiply
    155,673.70x = 233,478.15 × 43,324.90
  4. Step 4: Simplify right side
    155,673.70x = 10,115,417,500.94
  5. Step 5: Solve for x
    x = 10,115,417,500.94/155,673.70
  6. Step 6: Final answer
    x = 64,978.33

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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.