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Finding the Fourth Proportional to 218,461.10, 327,702.45 and 113,485.10

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Solution

The fourth proportional to 218,461.10, 327,702.45 and 113,485.10 is: 170,233.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,461.10 : 327,702.45 = 113,485.10 : x
  2. Step 2: Convert to fraction form
    218,461.10/327,702.45 = 113,485.10/x
  3. Step 3: Cross multiply
    218,461.10x = 327,702.45 × 113,485.10
  4. Step 4: Simplify right side
    218,461.10x = 37,189,345,308.50
  5. Step 5: Solve for x
    x = 37,189,345,308.50/218,461.10
  6. Step 6: Final answer
    x = 170,233.26

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1.5x scale

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.