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Finding the Fourth Proportional to 127,336.66, 190,871.76 and 71,094.28

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Solution

The fourth proportional to 127,336.66, 190,871.76 and 71,094.28 is: 106,567.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,336.66 : 190,871.76 = 71,094.28 : x
  2. Step 2: Convert to fraction form
    127,336.66/190,871.76 = 71,094.28/x
  3. Step 3: Cross multiply
    127,336.66x = 190,871.76 × 71,094.28
  4. Step 4: Simplify right side
    127,336.66x = 13,569,890,349.53
  5. Step 5: Solve for x
    x = 13,569,890,349.53/127,336.66
  6. Step 6: Final answer
    x = 106,567.04

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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.