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Finding the Fourth Proportional to 235,070.90, 352,599.44 and 66,590.90

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Solution

The fourth proportional to 235,070.90, 352,599.44 and 66,590.90 is: 99,884.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,070.90 : 352,599.44 = 66,590.90 : x
  2. Step 2: Convert to fraction form
    235,070.90/352,599.44 = 66,590.90/x
  3. Step 3: Cross multiply
    235,070.90x = 352,599.44 × 66,590.90
  4. Step 4: Simplify right side
    235,070.90x = 23,479,914,049.10
  5. Step 5: Solve for x
    x = 23,479,914,049.10/235,070.90
  6. Step 6: Final answer
    x = 99,884.39

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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.