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Finding the Fourth Proportional to 291,578.02, 402,370.05 and 164,246.02

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Solution

The fourth proportional to 291,578.02, 402,370.05 and 164,246.02 is: 226,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,578.02 : 402,370.05 = 164,246.02 : x
  2. Step 2: Convert to fraction form
    291,578.02/402,370.05 = 164,246.02/x
  3. Step 3: Cross multiply
    291,578.02x = 402,370.05 × 164,246.02
  4. Step 4: Simplify right side
    291,578.02x = 66,087,679,279.70
  5. Step 5: Solve for x
    x = 66,087,679,279.70/291,578.02
  6. Step 6: Final answer
    x = 226,655.22

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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.