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Finding the Fourth Proportional to 310,881.64, 466,272.72 and 111,164.80

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Solution

The fourth proportional to 310,881.64, 466,272.72 and 111,164.80 is: 166,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,881.64 : 466,272.72 = 111,164.80 : x
  2. Step 2: Convert to fraction form
    310,881.64/466,272.72 = 111,164.80/x
  3. Step 3: Cross multiply
    310,881.64x = 466,272.72 × 111,164.80
  4. Step 4: Simplify right side
    310,881.64x = 51,833,113,664.26
  5. Step 5: Solve for x
    x = 51,833,113,664.26/310,881.64
  6. Step 6: Final answer
    x = 166,729.41

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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.