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Finding the Fourth Proportional to 117,332.42, 175,920.88 and 42,442.72

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Solution

The fourth proportional to 117,332.42, 175,920.88 and 42,442.72 is: 63,635.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,332.42 : 175,920.88 = 42,442.72 : x
  2. Step 2: Convert to fraction form
    117,332.42/175,920.88 = 42,442.72/x
  3. Step 3: Cross multiply
    117,332.42x = 175,920.88 × 42,442.72
  4. Step 4: Simplify right side
    117,332.42x = 7,466,560,651.99
  5. Step 5: Solve for x
    x = 7,466,560,651.99/117,332.42
  6. Step 6: Final answer
    x = 63,635.96

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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.