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Finding the Fourth Proportional to 170,057.80, 255,113.70 and 57,748.60

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Solution

The fourth proportional to 170,057.80, 255,113.70 and 57,748.60 is: 86,632.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,057.80 : 255,113.70 = 57,748.60 : x
  2. Step 2: Convert to fraction form
    170,057.80/255,113.70 = 57,748.60/x
  3. Step 3: Cross multiply
    170,057.80x = 255,113.70 × 57,748.60
  4. Step 4: Simplify right side
    170,057.80x = 14,732,459,015.82
  5. Step 5: Solve for x
    x = 14,732,459,015.82/170,057.80
  6. Step 6: Final answer
    x = 86,632.07

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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.