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Finding the Fourth Proportional to 170,369.90, 255,673.43 and 70,530.61

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Solution

The fourth proportional to 170,369.90, 255,673.43 and 70,530.61 is: 105,845.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,369.90 : 255,673.43 = 70,530.61 : x
  2. Step 2: Convert to fraction form
    170,369.90/255,673.43 = 70,530.61/x
  3. Step 3: Cross multiply
    170,369.90x = 255,673.43 × 70,530.61
  4. Step 4: Simplify right side
    170,369.90x = 18,032,802,978.69
  5. Step 5: Solve for x
    x = 18,032,802,978.69/170,369.90
  6. Step 6: Final answer
    x = 105,845.01

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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.