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Finding the Fourth Proportional to 200,355.83, 300,056.67 and 115,938.08

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Solution

The fourth proportional to 200,355.83, 300,056.67 and 115,938.08 is: 173,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,355.83 : 300,056.67 = 115,938.08 : x
  2. Step 2: Convert to fraction form
    200,355.83/300,056.67 = 115,938.08/x
  3. Step 3: Cross multiply
    200,355.83x = 300,056.67 × 115,938.08
  4. Step 4: Simplify right side
    200,355.83x = 34,787,992,710.71
  5. Step 5: Solve for x
    x = 34,787,992,710.71/200,355.83
  6. Step 6: Final answer
    x = 173,631.05

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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.