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Finding the Fourth Proportional to 200,019.60, 300,072.60 and 59,792.40

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Solution

The fourth proportional to 200,019.60, 300,072.60 and 59,792.40 is: 89,701.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,019.60 : 300,072.60 = 59,792.40 : x
  2. Step 2: Convert to fraction form
    200,019.60/300,072.60 = 59,792.40/x
  3. Step 3: Cross multiply
    200,019.60x = 300,072.60 × 59,792.40
  4. Step 4: Simplify right side
    200,019.60x = 17,942,060,928.24
  5. Step 5: Solve for x
    x = 17,942,060,928.24/200,019.60
  6. Step 6: Final answer
    x = 89,701.51

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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.