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Finding the Fourth Proportional to 155,772.81, 233,664.48 and 43,455.78

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Solution

The fourth proportional to 155,772.81, 233,664.48 and 43,455.78 is: 65,185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,772.81 : 233,664.48 = 43,455.78 : x
  2. Step 2: Convert to fraction form
    155,772.81/233,664.48 = 43,455.78/x
  3. Step 3: Cross multiply
    155,772.81x = 233,664.48 × 43,455.78
  4. Step 4: Simplify right side
    155,772.81x = 10,154,072,236.69
  5. Step 5: Solve for x
    x = 10,154,072,236.69/155,772.81
  6. Step 6: Final answer
    x = 65,185.14

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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.