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Finding the Fourth Proportional to 117,703.90, 176,500.20 and 42,771.82

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Solution

The fourth proportional to 117,703.90, 176,500.20 and 42,771.82 is: 64,137.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,703.90 : 176,500.20 = 42,771.82 : x
  2. Step 2: Convert to fraction form
    117,703.90/176,500.20 = 42,771.82/x
  3. Step 3: Cross multiply
    117,703.90x = 176,500.20 × 42,771.82
  4. Step 4: Simplify right side
    117,703.90x = 7,549,234,784.36
  5. Step 5: Solve for x
    x = 7,549,234,784.36/117,703.90
  6. Step 6: Final answer
    x = 64,137.51

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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.