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Finding the Fourth Proportional to 354,070.37, 530,575.20 and 154,282.47

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Solution

The fourth proportional to 354,070.37, 530,575.20 and 154,282.47 is: 231,192.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,070.37 : 530,575.20 = 154,282.47 : x
  2. Step 2: Convert to fraction form
    354,070.37/530,575.20 = 154,282.47/x
  3. Step 3: Cross multiply
    354,070.37x = 530,575.20 × 154,282.47
  4. Step 4: Simplify right side
    354,070.37x = 81,858,452,376.74
  5. Step 5: Solve for x
    x = 81,858,452,376.74/354,070.37
  6. Step 6: Final answer
    x = 231,192.61

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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.