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Finding the Fourth Proportional to 238,654.98, 357,982.34 and 70,176.70

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Solution

The fourth proportional to 238,654.98, 357,982.34 and 70,176.70 is: 105,265.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,654.98 : 357,982.34 = 70,176.70 : x
  2. Step 2: Convert to fraction form
    238,654.98/357,982.34 = 70,176.70/x
  3. Step 3: Cross multiply
    238,654.98x = 357,982.34 × 70,176.70
  4. Step 4: Simplify right side
    238,654.98x = 25,122,019,279.48
  5. Step 5: Solve for x
    x = 25,122,019,279.48/238,654.98
  6. Step 6: Final answer
    x = 105,265.01

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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.