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Finding the Fourth Proportional to 118,757.61, 178,209.53 and 46,697.84

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Solution

The fourth proportional to 118,757.61, 178,209.53 and 46,697.84 is: 70,075.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,757.61 : 178,209.53 = 46,697.84 : x
  2. Step 2: Convert to fraction form
    118,757.61/178,209.53 = 46,697.84/x
  3. Step 3: Cross multiply
    118,757.61x = 178,209.53 × 46,697.84
  4. Step 4: Simplify right side
    118,757.61x = 8,322,000,680.68
  5. Step 5: Solve for x
    x = 8,322,000,680.68/118,757.61
  6. Step 6: Final answer
    x = 70,075.51

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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.