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Finding the Fourth Proportional to 194,553.70, 291,830.55 and 54,312.10

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Solution

The fourth proportional to 194,553.70, 291,830.55 and 54,312.10 is: 81,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,553.70 : 291,830.55 = 54,312.10 : x
  2. Step 2: Convert to fraction form
    194,553.70/291,830.55 = 54,312.10/x
  3. Step 3: Cross multiply
    194,553.70x = 291,830.55 × 54,312.10
  4. Step 4: Simplify right side
    194,553.70x = 15,849,930,014.66
  5. Step 5: Solve for x
    x = 15,849,930,014.66/194,553.70
  6. Step 6: Final answer
    x = 81,468.15

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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.