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Finding the Fourth Proportional to 175,805.50, 242,597.17 and 99,331.22

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Solution

The fourth proportional to 175,805.50, 242,597.17 and 99,331.22 is: 137,068.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,805.50 : 242,597.17 = 99,331.22 : x
  2. Step 2: Convert to fraction form
    175,805.50/242,597.17 = 99,331.22/x
  3. Step 3: Cross multiply
    175,805.50x = 242,597.17 × 99,331.22
  4. Step 4: Simplify right side
    175,805.50x = 24,097,472,367.99
  5. Step 5: Solve for x
    x = 24,097,472,367.99/175,805.50
  6. Step 6: Final answer
    x = 137,068.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.