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Finding the Fourth Proportional to 117,030.40, 175,560 and 38,123.44

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Solution

The fourth proportional to 117,030.40, 175,560 and 38,123.44 is: 57,189.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,030.40 : 175,560 = 38,123.44 : x
  2. Step 2: Convert to fraction form
    117,030.40/175,560 = 38,123.44/x
  3. Step 3: Cross multiply
    117,030.40x = 175,560 × 38,123.44
  4. Step 4: Simplify right side
    117,030.40x = 6,692,951,126.40
  5. Step 5: Solve for x
    x = 6,692,951,126.40/117,030.40
  6. Step 6: Final answer
    x = 57,189.85

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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.