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Finding the Fourth Proportional to 118,064.39, 177,148.82 and 61,891.12

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Solution

The fourth proportional to 118,064.39, 177,148.82 and 61,891.12 is: 92,864.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,064.39 : 177,148.82 = 61,891.12 : x
  2. Step 2: Convert to fraction form
    118,064.39/177,148.82 = 61,891.12/x
  3. Step 3: Cross multiply
    118,064.39x = 177,148.82 × 61,891.12
  4. Step 4: Simplify right side
    118,064.39x = 10,963,939,252.64
  5. Step 5: Solve for x
    x = 10,963,939,252.64/118,064.39
  6. Step 6: Final answer
    x = 92,864.07

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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.