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Finding the Fourth Proportional to 271,326.60, 406,989.90 and 113,538.60

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Solution

The fourth proportional to 271,326.60, 406,989.90 and 113,538.60 is: 170,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,326.60 : 406,989.90 = 113,538.60 : x
  2. Step 2: Convert to fraction form
    271,326.60/406,989.90 = 113,538.60/x
  3. Step 3: Cross multiply
    271,326.60x = 406,989.90 × 113,538.60
  4. Step 4: Simplify right side
    271,326.60x = 46,209,063,460.14
  5. Step 5: Solve for x
    x = 46,209,063,460.14/271,326.60
  6. Step 6: Final answer
    x = 170,307.90

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1.5x scale

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.