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Finding the Fourth Proportional to 194,627.40, 291,725.10 and 76,259.40

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Solution

The fourth proportional to 194,627.40, 291,725.10 and 76,259.40 is: 114,304.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,627.40 : 291,725.10 = 76,259.40 : x
  2. Step 2: Convert to fraction form
    194,627.40/291,725.10 = 76,259.40/x
  3. Step 3: Cross multiply
    194,627.40x = 291,725.10 × 76,259.40
  4. Step 4: Simplify right side
    194,627.40x = 22,246,781,090.94
  5. Step 5: Solve for x
    x = 22,246,781,090.94/194,627.40
  6. Step 6: Final answer
    x = 114,304.47

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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.