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Finding the Fourth Proportional to 437,578.02, 656,366.96 and 105,154.02

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Solution

The fourth proportional to 437,578.02, 656,366.96 and 105,154.02 is: 157,731.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,578.02 : 656,366.96 = 105,154.02 : x
  2. Step 2: Convert to fraction form
    437,578.02/656,366.96 = 105,154.02/x
  3. Step 3: Cross multiply
    437,578.02x = 656,366.96 × 105,154.02
  4. Step 4: Simplify right side
    437,578.02x = 69,019,624,439.18
  5. Step 5: Solve for x
    x = 69,019,624,439.18/437,578.02
  6. Step 6: Final answer
    x = 157,731.01

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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.