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Finding the Fourth Proportional to 291,395.76, 437,171.36 and 104,426.16

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Solution

The fourth proportional to 291,395.76, 437,171.36 and 104,426.16 is: 156,667.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,395.76 : 437,171.36 = 104,426.16 : x
  2. Step 2: Convert to fraction form
    291,395.76/437,171.36 = 104,426.16/x
  3. Step 3: Cross multiply
    291,395.76x = 437,171.36 × 104,426.16
  4. Step 4: Simplify right side
    291,395.76x = 45,652,126,386.78
  5. Step 5: Solve for x
    x = 45,652,126,386.78/291,395.76
  6. Step 6: Final answer
    x = 156,667.09

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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.