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Finding the Fourth Proportional to 145,673.44, 201,027.12 and 82,011.04

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Solution

The fourth proportional to 145,673.44, 201,027.12 and 82,011.04 is: 113,173.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,673.44 : 201,027.12 = 82,011.04 : x
  2. Step 2: Convert to fraction form
    145,673.44/201,027.12 = 82,011.04/x
  3. Step 3: Cross multiply
    145,673.44x = 201,027.12 × 82,011.04
  4. Step 4: Simplify right side
    145,673.44x = 16,486,443,179.40
  5. Step 5: Solve for x
    x = 16,486,443,179.40/145,673.44
  6. Step 6: Final answer
    x = 113,173.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.