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Finding the Fourth Proportional to 180,712.54, 271,062.13 and 86,010.58

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Solution

The fourth proportional to 180,712.54, 271,062.13 and 86,010.58 is: 129,012.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,712.54 : 271,062.13 = 86,010.58 : x
  2. Step 2: Convert to fraction form
    180,712.54/271,062.13 = 86,010.58/x
  3. Step 3: Cross multiply
    180,712.54x = 271,062.13 × 86,010.58
  4. Step 4: Simplify right side
    180,712.54x = 23,314,211,017.34
  5. Step 5: Solve for x
    x = 23,314,211,017.34/180,712.54
  6. Step 6: Final answer
    x = 129,012.69

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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.