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Finding the Fourth Proportional to 117,048.44, 175,531.12 and 42,148.48

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Solution

The fourth proportional to 117,048.44, 175,531.12 and 42,148.48 is: 63,207.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,048.44 : 175,531.12 = 42,148.48 : x
  2. Step 2: Convert to fraction form
    117,048.44/175,531.12 = 42,148.48/x
  3. Step 3: Cross multiply
    117,048.44x = 175,531.12 × 42,148.48
  4. Step 4: Simplify right side
    117,048.44x = 7,398,369,900.70
  5. Step 5: Solve for x
    x = 7,398,369,900.70/117,048.44
  6. Step 6: Final answer
    x = 63,207.76

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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.