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Finding the Fourth Proportional to 293,463.56, 440,183.76 and 103,916.28

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Solution

The fourth proportional to 293,463.56, 440,183.76 and 103,916.28 is: 155,870.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,463.56 : 440,183.76 = 103,916.28 : x
  2. Step 2: Convert to fraction form
    293,463.56/440,183.76 = 103,916.28/x
  3. Step 3: Cross multiply
    293,463.56x = 440,183.76 × 103,916.28
  4. Step 4: Simplify right side
    293,463.56x = 45,742,258,855.61
  5. Step 5: Solve for x
    x = 45,742,258,855.61/293,463.56
  6. Step 6: Final answer
    x = 155,870.32

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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.