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Finding the Fourth Proportional to 155,775.90, 233,721.45 and 150,015.90

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Solution

The fourth proportional to 155,775.90, 233,721.45 and 150,015.90 is: 225,079.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,775.90 : 233,721.45 = 150,015.90 : x
  2. Step 2: Convert to fraction form
    155,775.90/233,721.45 = 150,015.90/x
  3. Step 3: Cross multiply
    155,775.90x = 233,721.45 × 150,015.90
  4. Step 4: Simplify right side
    155,775.90x = 35,061,933,671.06
  5. Step 5: Solve for x
    x = 35,061,933,671.06/155,775.90
  6. Step 6: Final answer
    x = 225,079.32

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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.