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Finding the Fourth Proportional to 265,900.51, 398,518.14 and 132,817.91

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Solution

The fourth proportional to 265,900.51, 398,518.14 and 132,817.91 is: 199,060.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,900.51 : 398,518.14 = 132,817.91 : x
  2. Step 2: Convert to fraction form
    265,900.51/398,518.14 = 132,817.91/x
  3. Step 3: Cross multiply
    265,900.51x = 398,518.14 × 132,817.91
  4. Step 4: Simplify right side
    265,900.51x = 52,930,346,451.89
  5. Step 5: Solve for x
    x = 52,930,346,451.89/265,900.51
  6. Step 6: Final answer
    x = 199,060.72

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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.