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Finding the Fourth Proportional to 117,173.70, 175,655.30 and 42,276.24

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Solution

The fourth proportional to 117,173.70, 175,655.30 and 42,276.24 is: 63,376.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,173.70 : 175,655.30 = 42,276.24 : x
  2. Step 2: Convert to fraction form
    117,173.70/175,655.30 = 42,276.24/x
  3. Step 3: Cross multiply
    117,173.70x = 175,655.30 × 42,276.24
  4. Step 4: Simplify right side
    117,173.70x = 7,426,045,620.07
  5. Step 5: Solve for x
    x = 7,426,045,620.07/117,173.70
  6. Step 6: Final answer
    x = 63,376.39

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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.