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Finding the Fourth Proportional to 158,176.36, 218,283.36 and 86,556.39

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Solution

The fourth proportional to 158,176.36, 218,283.36 and 86,556.39 is: 119,447.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,176.36 : 218,283.36 = 86,556.39 : x
  2. Step 2: Convert to fraction form
    158,176.36/218,283.36 = 86,556.39/x
  3. Step 3: Cross multiply
    158,176.36x = 218,283.36 × 86,556.39
  4. Step 4: Simplify right side
    158,176.36x = 18,893,819,638.67
  5. Step 5: Solve for x
    x = 18,893,819,638.67/158,176.36
  6. Step 6: Final answer
    x = 119,447.81

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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.