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Finding the Fourth Proportional to 171,071.90, 256,607.85 and 46,412.90

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Solution

The fourth proportional to 171,071.90, 256,607.85 and 46,412.90 is: 69,619.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,071.90 : 256,607.85 = 46,412.90 : x
  2. Step 2: Convert to fraction form
    171,071.90/256,607.85 = 46,412.90/x
  3. Step 3: Cross multiply
    171,071.90x = 256,607.85 × 46,412.90
  4. Step 4: Simplify right side
    171,071.90x = 11,909,914,481.27
  5. Step 5: Solve for x
    x = 11,909,914,481.27/171,071.90
  6. Step 6: Final answer
    x = 69,619.35

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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.