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Finding the Fourth Proportional to 117,113.56, 175,404.29 and 91,654.45

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Solution

The fourth proportional to 117,113.56, 175,404.29 and 91,654.45 is: 137,273.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,113.56 : 175,404.29 = 91,654.45 : x
  2. Step 2: Convert to fraction form
    117,113.56/175,404.29 = 91,654.45/x
  3. Step 3: Cross multiply
    117,113.56x = 175,404.29 × 91,654.45
  4. Step 4: Simplify right side
    117,113.56x = 16,076,582,830.81
  5. Step 5: Solve for x
    x = 16,076,582,830.81/117,113.56
  6. Step 6: Final answer
    x = 137,273.46

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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.