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Finding the Fourth Proportional to 156,950.40, 216,494.36 and 136,855.52

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Solution

The fourth proportional to 156,950.40, 216,494.36 and 136,855.52 is: 188,775.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,950.40 : 216,494.36 = 136,855.52 : x
  2. Step 2: Convert to fraction form
    156,950.40/216,494.36 = 136,855.52/x
  3. Step 3: Cross multiply
    156,950.40x = 216,494.36 × 136,855.52
  4. Step 4: Simplify right side
    156,950.40x = 29,628,448,214.87
  5. Step 5: Solve for x
    x = 29,628,448,214.87/156,950.40
  6. Step 6: Final answer
    x = 188,775.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.