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Finding the Fourth Proportional to 170,762.40, 256,119.30 and 58,447.80

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Solution

The fourth proportional to 170,762.40, 256,119.30 and 58,447.80 is: 87,663.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,762.40 : 256,119.30 = 58,447.80 : x
  2. Step 2: Convert to fraction form
    170,762.40/256,119.30 = 58,447.80/x
  3. Step 3: Cross multiply
    170,762.40x = 256,119.30 × 58,447.80
  4. Step 4: Simplify right side
    170,762.40x = 14,969,609,622.54
  5. Step 5: Solve for x
    x = 14,969,609,622.54/170,762.40
  6. Step 6: Final answer
    x = 87,663.38

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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.