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Finding the Fourth Proportional to 79,370.60, 119,032.14 and 31,970.48

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Solution

The fourth proportional to 79,370.60, 119,032.14 and 31,970.48 is: 47,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,370.60 : 119,032.14 = 31,970.48 : x
  2. Step 2: Convert to fraction form
    79,370.60/119,032.14 = 31,970.48/x
  3. Step 3: Cross multiply
    79,370.60x = 119,032.14 × 31,970.48
  4. Step 4: Simplify right side
    79,370.60x = 3,805,514,651.23
  5. Step 5: Solve for x
    x = 3,805,514,651.23/79,370.60
  6. Step 6: Final answer
    x = 47,946.15

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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.