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Finding the Fourth Proportional to 371,988.44, 557,898.82 and 105,743.06

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Solution

The fourth proportional to 371,988.44, 557,898.82 and 105,743.06 is: 158,590.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,988.44 : 557,898.82 = 105,743.06 : x
  2. Step 2: Convert to fraction form
    371,988.44/557,898.82 = 105,743.06/x
  3. Step 3: Cross multiply
    371,988.44x = 557,898.82 × 105,743.06
  4. Step 4: Simplify right side
    371,988.44x = 58,993,928,397.19
  5. Step 5: Solve for x
    x = 58,993,928,397.19/371,988.44
  6. Step 6: Final answer
    x = 158,590.76

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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.