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Finding the Fourth Proportional to 502,590.91, 753,979.75 and 165,655.21

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Solution

The fourth proportional to 502,590.91, 753,979.75 and 165,655.21 is: 248,513.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,590.91 : 753,979.75 = 165,655.21 : x
  2. Step 2: Convert to fraction form
    502,590.91/753,979.75 = 165,655.21/x
  3. Step 3: Cross multiply
    502,590.91x = 753,979.75 × 165,655.21
  4. Step 4: Simplify right side
    502,590.91x = 124,900,673,822.00
  5. Step 5: Solve for x
    x = 124,900,673,822.00/502,590.91
  6. Step 6: Final answer
    x = 248,513.59

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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.