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Finding the Fourth Proportional to 251,459.93, 347,012.80 and 136,738.62

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Solution

The fourth proportional to 251,459.93, 347,012.80 and 136,738.62 is: 188,698.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,459.93 : 347,012.80 = 136,738.62 : x
  2. Step 2: Convert to fraction form
    251,459.93/347,012.80 = 136,738.62/x
  3. Step 3: Cross multiply
    251,459.93x = 347,012.80 × 136,738.62
  4. Step 4: Simplify right side
    251,459.93x = 47,450,051,052.49
  5. Step 5: Solve for x
    x = 47,450,051,052.49/251,459.93
  6. Step 6: Final answer
    x = 188,698.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.