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Finding the Fourth Proportional to 117,266.60, 175,914.30 and 38,359.40

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Solution

The fourth proportional to 117,266.60, 175,914.30 and 38,359.40 is: 57,543.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,266.60 : 175,914.30 = 38,359.40 : x
  2. Step 2: Convert to fraction form
    117,266.60/175,914.30 = 38,359.40/x
  3. Step 3: Cross multiply
    117,266.60x = 175,914.30 × 38,359.40
  4. Step 4: Simplify right side
    117,266.60x = 6,747,966,999.42
  5. Step 5: Solve for x
    x = 6,747,966,999.42/117,266.60
  6. Step 6: Final answer
    x = 57,543.81

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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.