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Finding the Fourth Proportional to 170,602.78, 255,794.66 and 70,831.84

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Solution

The fourth proportional to 170,602.78, 255,794.66 and 70,831.84 is: 106,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,602.78 : 255,794.66 = 70,831.84 : x
  2. Step 2: Convert to fraction form
    170,602.78/255,794.66 = 70,831.84/x
  3. Step 3: Cross multiply
    170,602.78x = 255,794.66 × 70,831.84
  4. Step 4: Simplify right side
    170,602.78x = 18,118,406,429.97
  5. Step 5: Solve for x
    x = 18,118,406,429.97/170,602.78
  6. Step 6: Final answer
    x = 106,202.29

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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.