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Finding the Fourth Proportional to 308,726.70, 463,090.05 and 131,174.70

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Solution

The fourth proportional to 308,726.70, 463,090.05 and 131,174.70 is: 196,762.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,726.70 : 463,090.05 = 131,174.70 : x
  2. Step 2: Convert to fraction form
    308,726.70/463,090.05 = 131,174.70/x
  3. Step 3: Cross multiply
    308,726.70x = 463,090.05 × 131,174.70
  4. Step 4: Simplify right side
    308,726.70x = 60,745,698,381.74
  5. Step 5: Solve for x
    x = 60,745,698,381.74/308,726.70
  6. Step 6: Final answer
    x = 196,762.05

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1.5x scale

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.