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Finding the Fourth Proportional to 117,692.65, 176,483.35 and 42,760.54

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Solution

The fourth proportional to 117,692.65, 176,483.35 and 42,760.54 is: 64,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,692.65 : 176,483.35 = 42,760.54 : x
  2. Step 2: Convert to fraction form
    117,692.65/176,483.35 = 42,760.54/x
  3. Step 3: Cross multiply
    117,692.65x = 176,483.35 × 42,760.54
  4. Step 4: Simplify right side
    117,692.65x = 7,546,523,347.01
  5. Step 5: Solve for x
    x = 7,546,523,347.01/117,692.65
  6. Step 6: Final answer
    x = 64,120.60

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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.