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Finding the Fourth Proportional to 158,600.33, 218,871.47 and 86,976.05

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Solution

The fourth proportional to 158,600.33, 218,871.47 and 86,976.05 is: 120,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,600.33 : 218,871.47 = 86,976.05 : x
  2. Step 2: Convert to fraction form
    158,600.33/218,871.47 = 86,976.05/x
  3. Step 3: Cross multiply
    158,600.33x = 218,871.47 × 86,976.05
  4. Step 4: Simplify right side
    158,600.33x = 19,036,575,483.41
  5. Step 5: Solve for x
    x = 19,036,575,483.41/158,600.33
  6. Step 6: Final answer
    x = 120,028.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.