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Finding the Fourth Proportional to 118,468.68, 177,734.19 and 42,574.89

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Solution

The fourth proportional to 118,468.68, 177,734.19 and 42,574.89 is: 63,873.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,468.68 : 177,734.19 = 42,574.89 : x
  2. Step 2: Convert to fraction form
    118,468.68/177,734.19 = 42,574.89/x
  3. Step 3: Cross multiply
    118,468.68x = 177,734.19 × 42,574.89
  4. Step 4: Simplify right side
    118,468.68x = 7,567,013,588.49
  5. Step 5: Solve for x
    x = 7,567,013,588.49/118,468.68
  6. Step 6: Final answer
    x = 63,873.54

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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.