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Finding the Fourth Proportional to 117,384.40, 176,087.40 and 47,249.20

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Solution

The fourth proportional to 117,384.40, 176,087.40 and 47,249.20 is: 70,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,384.40 : 176,087.40 = 47,249.20 : x
  2. Step 2: Convert to fraction form
    117,384.40/176,087.40 = 47,249.20/x
  3. Step 3: Cross multiply
    117,384.40x = 176,087.40 × 47,249.20
  4. Step 4: Simplify right side
    117,384.40x = 8,319,988,780.08
  5. Step 5: Solve for x
    x = 8,319,988,780.08/117,384.40
  6. Step 6: Final answer
    x = 70,878.15

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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.