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Finding the Fourth Proportional to 270,065.92, 405,148.08 and 92,590.88

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Solution

The fourth proportional to 270,065.92, 405,148.08 and 92,590.88 is: 138,903.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,065.92 : 405,148.08 = 92,590.88 : x
  2. Step 2: Convert to fraction form
    270,065.92/405,148.08 = 92,590.88/x
  3. Step 3: Cross multiply
    270,065.92x = 405,148.08 × 92,590.88
  4. Step 4: Simplify right side
    270,065.92x = 37,513,017,257.51
  5. Step 5: Solve for x
    x = 37,513,017,257.51/270,065.92
  6. Step 6: Final answer
    x = 138,903.19

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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.