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Finding the Fourth Proportional to 133,344.40, 200,045.40 and 39,859.60

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Solution

The fourth proportional to 133,344.40, 200,045.40 and 39,859.60 is: 59,798.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,344.40 : 200,045.40 = 39,859.60 : x
  2. Step 2: Convert to fraction form
    133,344.40/200,045.40 = 39,859.60/x
  3. Step 3: Cross multiply
    133,344.40x = 200,045.40 × 39,859.60
  4. Step 4: Simplify right side
    133,344.40x = 7,973,729,625.84
  5. Step 5: Solve for x
    x = 7,973,729,625.84/133,344.40
  6. Step 6: Final answer
    x = 59,798.01

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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.