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Finding the Fourth Proportional to 131,420.70, 197,109.48 and 36,657.33

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Solution

The fourth proportional to 131,420.70, 197,109.48 and 36,657.33 is: 54,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,420.70 : 197,109.48 = 36,657.33 : x
  2. Step 2: Convert to fraction form
    131,420.70/197,109.48 = 36,657.33/x
  3. Step 3: Cross multiply
    131,420.70x = 197,109.48 × 36,657.33
  4. Step 4: Simplify right side
    131,420.70x = 7,225,507,254.49
  5. Step 5: Solve for x
    x = 7,225,507,254.49/131,420.70
  6. Step 6: Final answer
    x = 54,979.98

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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.