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Finding the Fourth Proportional to 164,077.80, 245,598.30 and 128,826.60

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Solution

The fourth proportional to 164,077.80, 245,598.30 and 128,826.60 is: 192,832.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,077.80 : 245,598.30 = 128,826.60 : x
  2. Step 2: Convert to fraction form
    164,077.80/245,598.30 = 128,826.60/x
  3. Step 3: Cross multiply
    164,077.80x = 245,598.30 × 128,826.60
  4. Step 4: Simplify right side
    164,077.80x = 31,639,593,954.78
  5. Step 5: Solve for x
    x = 31,639,593,954.78/164,077.80
  6. Step 6: Final answer
    x = 192,832.88

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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.