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Finding the Fourth Proportional to 271,063.60, 406,303.80 and 102,518.80

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Solution

The fourth proportional to 271,063.60, 406,303.80 and 102,518.80 is: 153,667.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,063.60 : 406,303.80 = 102,518.80 : x
  2. Step 2: Convert to fraction form
    271,063.60/406,303.80 = 102,518.80/x
  3. Step 3: Cross multiply
    271,063.60x = 406,303.80 × 102,518.80
  4. Step 4: Simplify right side
    271,063.60x = 41,653,778,011.44
  5. Step 5: Solve for x
    x = 41,653,778,011.44/271,063.60
  6. Step 6: Final answer
    x = 153,667.91

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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.