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Finding the Fourth Proportional to 133,065.40, 199,889.70 and 98,228.92

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Solution

The fourth proportional to 133,065.40, 199,889.70 and 98,228.92 is: 147,558.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,065.40 : 199,889.70 = 98,228.92 : x
  2. Step 2: Convert to fraction form
    133,065.40/199,889.70 = 98,228.92/x
  3. Step 3: Cross multiply
    133,065.40x = 199,889.70 × 98,228.92
  4. Step 4: Simplify right side
    133,065.40x = 19,634,949,350.12
  5. Step 5: Solve for x
    x = 19,634,949,350.12/133,065.40
  6. Step 6: Final answer
    x = 147,558.64

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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.