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Finding the Fourth Proportional to 354,050.04, 530,879.22 and 140,601.72

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Solution

The fourth proportional to 354,050.04, 530,879.22 and 140,601.72 is: 210,824.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,050.04 : 530,879.22 = 140,601.72 : x
  2. Step 2: Convert to fraction form
    354,050.04/530,879.22 = 140,601.72/x
  3. Step 3: Cross multiply
    354,050.04x = 530,879.22 × 140,601.72
  4. Step 4: Simplify right side
    354,050.04x = 74,642,531,444.26
  5. Step 5: Solve for x
    x = 74,642,531,444.26/354,050.04
  6. Step 6: Final answer
    x = 210,824.81

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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.