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Finding the Fourth Proportional to 354,063.74, 530,735.51 and 140,982.51

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Solution

The fourth proportional to 354,063.74, 530,735.51 and 140,982.51 is: 211,330.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,063.74 : 530,735.51 = 140,982.51 : x
  2. Step 2: Convert to fraction form
    354,063.74/530,735.51 = 140,982.51/x
  3. Step 3: Cross multiply
    354,063.74x = 530,735.51 × 140,982.51
  4. Step 4: Simplify right side
    354,063.74x = 74,824,423,641.02
  5. Step 5: Solve for x
    x = 74,824,423,641.02/354,063.74
  6. Step 6: Final answer
    x = 211,330.38

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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.