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Finding the Fourth Proportional to 117,175.56, 175,720.94 and 42,275.55

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Solution

The fourth proportional to 117,175.56, 175,720.94 and 42,275.55 is: 63,398.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,175.56 : 175,720.94 = 42,275.55 : x
  2. Step 2: Convert to fraction form
    117,175.56/175,720.94 = 42,275.55/x
  3. Step 3: Cross multiply
    117,175.56x = 175,720.94 × 42,275.55
  4. Step 4: Simplify right side
    117,175.56x = 7,428,699,385.02
  5. Step 5: Solve for x
    x = 7,428,699,385.02/117,175.56
  6. Step 6: Final answer
    x = 63,398.03

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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.