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Finding the Fourth Proportional to 355,622.54, 533,434.28 and 145,260.54

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Solution

The fourth proportional to 355,622.54, 533,434.28 and 145,260.54 is: 217,891.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,622.54 : 533,434.28 = 145,260.54 : x
  2. Step 2: Convert to fraction form
    355,622.54/533,434.28 = 145,260.54/x
  3. Step 3: Cross multiply
    355,622.54x = 533,434.28 × 145,260.54
  4. Step 4: Simplify right side
    355,622.54x = 77,486,950,841.01
  5. Step 5: Solve for x
    x = 77,486,950,841.01/355,622.54
  6. Step 6: Final answer
    x = 217,891.00

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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.