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Finding the Fourth Proportional to 109,556.80, 164,340.60 and 57,068.80

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Solution

The fourth proportional to 109,556.80, 164,340.60 and 57,068.80 is: 85,606.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,556.80 : 164,340.60 = 57,068.80 : x
  2. Step 2: Convert to fraction form
    109,556.80/164,340.60 = 57,068.80/x
  3. Step 3: Cross multiply
    109,556.80x = 164,340.60 × 57,068.80
  4. Step 4: Simplify right side
    109,556.80x = 9,378,720,833.28
  5. Step 5: Solve for x
    x = 9,378,720,833.28/109,556.80
  6. Step 6: Final answer
    x = 85,606.01

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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.