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Finding the Fourth Proportional to 357,422.01, 536,236.77 and 144,079.82

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Solution

The fourth proportional to 357,422.01, 536,236.77 and 144,079.82 is: 216,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,422.01 : 536,236.77 = 144,079.82 : x
  2. Step 2: Convert to fraction form
    357,422.01/536,236.77 = 144,079.82/x
  3. Step 3: Cross multiply
    357,422.01x = 536,236.77 × 144,079.82
  4. Step 4: Simplify right side
    357,422.01x = 77,260,895,958.39
  5. Step 5: Solve for x
    x = 77,260,895,958.39/357,422.01
  6. Step 6: Final answer
    x = 216,161.55

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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.