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Finding the Fourth Proportional to 340,710.06, 511,028.64 and 104,217.60

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Solution

The fourth proportional to 340,710.06, 511,028.64 and 104,217.60 is: 156,315.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,710.06 : 511,028.64 = 104,217.60 : x
  2. Step 2: Convert to fraction form
    340,710.06/511,028.64 = 104,217.60/x
  3. Step 3: Cross multiply
    340,710.06x = 511,028.64 × 104,217.60
  4. Step 4: Simplify right side
    340,710.06x = 53,258,178,392.06
  5. Step 5: Solve for x
    x = 53,258,178,392.06/340,710.06
  6. Step 6: Final answer
    x = 156,315.25

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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.