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Finding the Fourth Proportional to 236,525.54, 354,788.28 and 86,709.20

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Solution

The fourth proportional to 236,525.54, 354,788.28 and 86,709.20 is: 130,063.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,525.54 : 354,788.28 = 86,709.20 : x
  2. Step 2: Convert to fraction form
    236,525.54/354,788.28 = 86,709.20/x
  3. Step 3: Cross multiply
    236,525.54x = 354,788.28 × 86,709.20
  4. Step 4: Simplify right side
    236,525.54x = 30,763,406,154.23
  5. Step 5: Solve for x
    x = 30,763,406,154.23/236,525.54
  6. Step 6: Final answer
    x = 130,063.78

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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.