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Finding the Fourth Proportional to 86,227.12, 130,150.54 and 86,227.12

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Solution

The fourth proportional to 86,227.12, 130,150.54 and 86,227.12 is: 130,150.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,227.12 : 130,150.54 = 86,227.12 : x
  2. Step 2: Convert to fraction form
    86,227.12/130,150.54 = 86,227.12/x
  3. Step 3: Cross multiply
    86,227.12x = 130,150.54 × 86,227.12
  4. Step 4: Simplify right side
    86,227.12x = 11,222,505,799.51
  5. Step 5: Solve for x
    x = 11,222,505,799.51/86,227.12
  6. Step 6: Final answer
    x = 130,150.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.