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Finding the Fourth Proportional to 154,762.80, 213,481.92 and 97,311.04

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Solution

The fourth proportional to 154,762.80, 213,481.92 and 97,311.04 is: 134,232.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,762.80 : 213,481.92 = 97,311.04 : x
  2. Step 2: Convert to fraction form
    154,762.80/213,481.92 = 97,311.04/x
  3. Step 3: Cross multiply
    154,762.80x = 213,481.92 × 97,311.04
  4. Step 4: Simplify right side
    154,762.80x = 20,774,147,656.40
  5. Step 5: Solve for x
    x = 20,774,147,656.40/154,762.80
  6. Step 6: Final answer
    x = 134,232.18

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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.