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Finding the Fourth Proportional to 355,855, 533,858.62 and 131,216.04

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Solution

The fourth proportional to 355,855, 533,858.62 and 131,216.04 is: 196,852.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,855 : 533,858.62 = 131,216.04 : x
  2. Step 2: Convert to fraction form
    355,855/533,858.62 = 131,216.04/x
  3. Step 3: Cross multiply
    355,855x = 533,858.62 × 131,216.04
  4. Step 4: Simplify right side
    355,855x = 70,050,814,036.26
  5. Step 5: Solve for x
    x = 70,050,814,036.26/355,855
  6. Step 6: Final answer
    x = 196,852.13

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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.