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Finding the Fourth Proportional to 230,480.08, 345,720.04 and 55,376.08

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Solution

The fourth proportional to 230,480.08, 345,720.04 and 55,376.08 is: 83,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,480.08 : 345,720.04 = 55,376.08 : x
  2. Step 2: Convert to fraction form
    230,480.08/345,720.04 = 55,376.08/x
  3. Step 3: Cross multiply
    230,480.08x = 345,720.04 × 55,376.08
  4. Step 4: Simplify right side
    230,480.08x = 19,144,620,592.64
  5. Step 5: Solve for x
    x = 19,144,620,592.64/230,480.08
  6. Step 6: Final answer
    x = 83,064.10

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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.