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Finding the Fourth Proportional to 357,156.45, 535,816.50 and 154,786.52

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Solution

The fourth proportional to 357,156.45, 535,816.50 and 154,786.52 is: 232,215.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,156.45 : 535,816.50 = 154,786.52 : x
  2. Step 2: Convert to fraction form
    357,156.45/535,816.50 = 154,786.52/x
  3. Step 3: Cross multiply
    357,156.45x = 535,816.50 × 154,786.52
  4. Step 4: Simplify right side
    357,156.45x = 82,937,170,619.65
  5. Step 5: Solve for x
    x = 82,937,170,619.65/357,156.45
  6. Step 6: Final answer
    x = 232,215.24

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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.