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Finding the Fourth Proportional to 130,687.60, 196,031.40 and 119,628.40

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Solution

The fourth proportional to 130,687.60, 196,031.40 and 119,628.40 is: 179,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,687.60 : 196,031.40 = 119,628.40 : x
  2. Step 2: Convert to fraction form
    130,687.60/196,031.40 = 119,628.40/x
  3. Step 3: Cross multiply
    130,687.60x = 196,031.40 × 119,628.40
  4. Step 4: Simplify right side
    130,687.60x = 23,450,922,731.76
  5. Step 5: Solve for x
    x = 23,450,922,731.76/130,687.60
  6. Step 6: Final answer
    x = 179,442.60

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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.