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Finding the Fourth Proportional to 369,805.51, 554,727.86 and 117,112.85

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Solution

The fourth proportional to 369,805.51, 554,727.86 and 117,112.85 is: 175,675.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,805.51 : 554,727.86 = 117,112.85 : x
  2. Step 2: Convert to fraction form
    369,805.51/554,727.86 = 117,112.85/x
  3. Step 3: Cross multiply
    369,805.51x = 554,727.86 × 117,112.85
  4. Step 4: Simplify right side
    369,805.51x = 64,965,759,819.20
  5. Step 5: Solve for x
    x = 64,965,759,819.20/369,805.51
  6. Step 6: Final answer
    x = 175,675.48

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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.