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Finding the Fourth Proportional to 291,391.98, 437,165.76 and 104,422.38

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Solution

The fourth proportional to 291,391.98, 437,165.76 and 104,422.38 is: 156,661.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,391.98 : 437,165.76 = 104,422.38 : x
  2. Step 2: Convert to fraction form
    291,391.98/437,165.76 = 104,422.38/x
  3. Step 3: Cross multiply
    291,391.98x = 437,165.76 × 104,422.38
  4. Step 4: Simplify right side
    291,391.98x = 45,649,889,113.71
  5. Step 5: Solve for x
    x = 45,649,889,113.71/291,391.98
  6. Step 6: Final answer
    x = 156,661.45

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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.