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Finding the Fourth Proportional to 194,461.80, 291,656.70 and 54,191.40

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Solution

The fourth proportional to 194,461.80, 291,656.70 and 54,191.40 is: 81,277.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,461.80 : 291,656.70 = 54,191.40 : x
  2. Step 2: Convert to fraction form
    194,461.80/291,656.70 = 54,191.40/x
  3. Step 3: Cross multiply
    194,461.80x = 291,656.70 × 54,191.40
  4. Step 4: Simplify right side
    194,461.80x = 15,805,284,892.38
  5. Step 5: Solve for x
    x = 15,805,284,892.38/194,461.80
  6. Step 6: Final answer
    x = 81,277.07

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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.