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Finding the Fourth Proportional to 535,012.62, 802,521.99 and 135,654.27

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Solution

The fourth proportional to 535,012.62, 802,521.99 and 135,654.27 is: 203,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,012.62 : 802,521.99 = 135,654.27 : x
  2. Step 2: Convert to fraction form
    535,012.62/802,521.99 = 135,654.27/x
  3. Step 3: Cross multiply
    535,012.62x = 802,521.99 × 135,654.27
  4. Step 4: Simplify right side
    535,012.62x = 108,865,534,712.40
  5. Step 5: Solve for x
    x = 108,865,534,712.40/535,012.62
  6. Step 6: Final answer
    x = 203,482.18

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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.