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Finding the Fourth Proportional to 155,735.52, 233,632.40 and 72,629.52

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Solution

The fourth proportional to 155,735.52, 233,632.40 and 72,629.52 is: 108,957.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,735.52 : 233,632.40 = 72,629.52 : x
  2. Step 2: Convert to fraction form
    155,735.52/233,632.40 = 72,629.52/x
  3. Step 3: Cross multiply
    155,735.52x = 233,632.40 × 72,629.52
  4. Step 4: Simplify right side
    155,735.52x = 16,968,609,068.45
  5. Step 5: Solve for x
    x = 16,968,609,068.45/155,735.52
  6. Step 6: Final answer
    x = 108,957.86

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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.