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Finding the Fourth Proportional to 170,046.40, 255,069.60 and 140,497.60

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Solution

The fourth proportional to 170,046.40, 255,069.60 and 140,497.60 is: 210,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,046.40 : 255,069.60 = 140,497.60 : x
  2. Step 2: Convert to fraction form
    170,046.40/255,069.60 = 140,497.60/x
  3. Step 3: Cross multiply
    170,046.40x = 255,069.60 × 140,497.60
  4. Step 4: Simplify right side
    170,046.40x = 35,836,666,632.96
  5. Step 5: Solve for x
    x = 35,836,666,632.96/170,046.40
  6. Step 6: Final answer
    x = 210,746.40

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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.