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Finding the Fourth Proportional to 170,712.40, 256,044.30 and 58,397.80

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Solution

The fourth proportional to 170,712.40, 256,044.30 and 58,397.80 is: 87,588.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,712.40 : 256,044.30 = 58,397.80 : x
  2. Step 2: Convert to fraction form
    170,712.40/256,044.30 = 58,397.80/x
  3. Step 3: Cross multiply
    170,712.40x = 256,044.30 × 58,397.80
  4. Step 4: Simplify right side
    170,712.40x = 14,952,423,822.54
  5. Step 5: Solve for x
    x = 14,952,423,822.54/170,712.40
  6. Step 6: Final answer
    x = 87,588.39

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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.