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Finding the Fourth Proportional to 78,858.29, 118,287.44 and 23,454.29

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Solution

The fourth proportional to 78,858.29, 118,287.44 and 23,454.29 is: 35,181.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,858.29 : 118,287.44 = 23,454.29 : x
  2. Step 2: Convert to fraction form
    78,858.29/118,287.44 = 23,454.29/x
  3. Step 3: Cross multiply
    78,858.29x = 118,287.44 × 23,454.29
  4. Step 4: Simplify right side
    78,858.29x = 2,774,348,187.52
  5. Step 5: Solve for x
    x = 2,774,348,187.52/78,858.29
  6. Step 6: Final answer
    x = 35,181.44

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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.