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Finding the Fourth Proportional to 133,036.40, 199,846.20 and 98,199.92

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Solution

The fourth proportional to 133,036.40, 199,846.20 and 98,199.92 is: 147,515.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,036.40 : 199,846.20 = 98,199.92 : x
  2. Step 2: Convert to fraction form
    133,036.40/199,846.20 = 98,199.92/x
  3. Step 3: Cross multiply
    133,036.40x = 199,846.20 × 98,199.92
  4. Step 4: Simplify right side
    133,036.40x = 19,624,880,852.30
  5. Step 5: Solve for x
    x = 19,624,880,852.30/133,036.40
  6. Step 6: Final answer
    x = 147,515.12

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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.