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Finding the Fourth Proportional to 355,715.02, 533,573.43 and 145,352.92

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Solution

The fourth proportional to 355,715.02, 533,573.43 and 145,352.92 is: 218,029.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,715.02 : 533,573.43 = 145,352.92 : x
  2. Step 2: Convert to fraction form
    355,715.02/533,573.43 = 145,352.92/x
  3. Step 3: Cross multiply
    355,715.02x = 533,573.43 × 145,352.92
  4. Step 4: Simplify right side
    355,715.02x = 77,556,456,084.92
  5. Step 5: Solve for x
    x = 77,556,456,084.92/355,715.02
  6. Step 6: Final answer
    x = 218,029.75

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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.