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Finding the Fourth Proportional to 169,907.32, 254,867.46 and 86,704.12

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Solution

The fourth proportional to 169,907.32, 254,867.46 and 86,704.12 is: 130,059.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,907.32 : 254,867.46 = 86,704.12 : x
  2. Step 2: Convert to fraction form
    169,907.32/254,867.46 = 86,704.12/x
  3. Step 3: Cross multiply
    169,907.32x = 254,867.46 × 86,704.12
  4. Step 4: Simplify right side
    169,907.32x = 22,098,058,835.94
  5. Step 5: Solve for x
    x = 22,098,058,835.94/169,907.32
  6. Step 6: Final answer
    x = 130,059.49

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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.