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Finding the Fourth Proportional to 270,030.60, 404,997.30 and 170,011.80

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Solution

The fourth proportional to 270,030.60, 404,997.30 and 170,011.80 is: 254,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,030.60 : 404,997.30 = 170,011.80 : x
  2. Step 2: Convert to fraction form
    270,030.60/404,997.30 = 170,011.80/x
  3. Step 3: Cross multiply
    270,030.60x = 404,997.30 × 170,011.80
  4. Step 4: Simplify right side
    270,030.60x = 68,854,319,968.14
  5. Step 5: Solve for x
    x = 68,854,319,968.14/270,030.60
  6. Step 6: Final answer
    x = 254,987.10

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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.