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Finding the Fourth Proportional to 365,119.20, 547,730.64 and 112,420.70

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Solution

The fourth proportional to 365,119.20, 547,730.64 and 112,420.70 is: 168,647.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,119.20 : 547,730.64 = 112,420.70 : x
  2. Step 2: Convert to fraction form
    365,119.20/547,730.64 = 112,420.70/x
  3. Step 3: Cross multiply
    365,119.20x = 547,730.64 × 112,420.70
  4. Step 4: Simplify right side
    365,119.20x = 61,576,261,960.25
  5. Step 5: Solve for x
    x = 61,576,261,960.25/365,119.20
  6. Step 6: Final answer
    x = 168,647.01

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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.