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Finding the Fourth Proportional to 543,242.36, 815,008.42 and 188,256.04

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Solution

The fourth proportional to 543,242.36, 815,008.42 and 188,256.04 is: 282,434.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,242.36 : 815,008.42 = 188,256.04 : x
  2. Step 2: Convert to fraction form
    543,242.36/815,008.42 = 188,256.04/x
  3. Step 3: Cross multiply
    543,242.36x = 815,008.42 × 188,256.04
  4. Step 4: Simplify right side
    543,242.36x = 153,430,255,913.66
  5. Step 5: Solve for x
    x = 153,430,255,913.66/543,242.36
  6. Step 6: Final answer
    x = 282,434.26

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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.