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Finding the Fourth Proportional to 194,715.60, 292,051.80 and 54,488.40

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Solution

The fourth proportional to 194,715.60, 292,051.80 and 54,488.40 is: 81,726.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,715.60 : 292,051.80 = 54,488.40 : x
  2. Step 2: Convert to fraction form
    194,715.60/292,051.80 = 54,488.40/x
  3. Step 3: Cross multiply
    194,715.60x = 292,051.80 × 54,488.40
  4. Step 4: Simplify right side
    194,715.60x = 15,913,435,299.12
  5. Step 5: Solve for x
    x = 15,913,435,299.12/194,715.60
  6. Step 6: Final answer
    x = 81,726.56

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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.