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Finding the Fourth Proportional to 282,662.60, 423,864.30 and 124,809.80

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Solution

The fourth proportional to 282,662.60, 423,864.30 and 124,809.80 is: 187,157.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,662.60 : 423,864.30 = 124,809.80 : x
  2. Step 2: Convert to fraction form
    282,662.60/423,864.30 = 124,809.80/x
  3. Step 3: Cross multiply
    282,662.60x = 423,864.30 × 124,809.80
  4. Step 4: Simplify right side
    282,662.60x = 52,902,418,510.14
  5. Step 5: Solve for x
    x = 52,902,418,510.14/282,662.60
  6. Step 6: Final answer
    x = 187,157.48

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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.