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Finding the Fourth Proportional to 58,789.20, 88,174.80 and 19,346.40

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Solution

The fourth proportional to 58,789.20, 88,174.80 and 19,346.40 is: 29,016.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,789.20 : 88,174.80 = 19,346.40 : x
  2. Step 2: Convert to fraction form
    58,789.20/88,174.80 = 19,346.40/x
  3. Step 3: Cross multiply
    58,789.20x = 88,174.80 × 19,346.40
  4. Step 4: Simplify right side
    58,789.20x = 1,705,864,950.72
  5. Step 5: Solve for x
    x = 1,705,864,950.72/58,789.20
  6. Step 6: Final answer
    x = 29,016.64

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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.