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Finding the Fourth Proportional to 58,743.40, 88,124.31 and 19,291.54

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Solution

The fourth proportional to 58,743.40, 88,124.31 and 19,291.54 is: 28,940.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,743.40 : 88,124.31 = 19,291.54 : x
  2. Step 2: Convert to fraction form
    58,743.40/88,124.31 = 19,291.54/x
  3. Step 3: Cross multiply
    58,743.40x = 88,124.31 × 19,291.54
  4. Step 4: Simplify right side
    58,743.40x = 1,700,053,651.34
  5. Step 5: Solve for x
    x = 1,700,053,651.34/58,743.40
  6. Step 6: Final answer
    x = 28,940.33

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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.