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Finding the Fourth Proportional to 242,273.80, 363,410.70 and 131,681.80

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Solution

The fourth proportional to 242,273.80, 363,410.70 and 131,681.80 is: 197,522.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,273.80 : 363,410.70 = 131,681.80 : x
  2. Step 2: Convert to fraction form
    242,273.80/363,410.70 = 131,681.80/x
  3. Step 3: Cross multiply
    242,273.80x = 363,410.70 × 131,681.80
  4. Step 4: Simplify right side
    242,273.80x = 47,854,575,115.26
  5. Step 5: Solve for x
    x = 47,854,575,115.26/242,273.80
  6. Step 6: Final answer
    x = 197,522.70

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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.