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Finding the Fourth Proportional to 374,289.75, 561,439.53 and 124,971.75

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Solution

The fourth proportional to 374,289.75, 561,439.53 and 124,971.75 is: 187,459.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,289.75 : 561,439.53 = 124,971.75 : x
  2. Step 2: Convert to fraction form
    374,289.75/561,439.53 = 124,971.75/x
  3. Step 3: Cross multiply
    374,289.75x = 561,439.53 × 124,971.75
  4. Step 4: Simplify right side
    374,289.75x = 70,164,080,583.28
  5. Step 5: Solve for x
    x = 70,164,080,583.28/374,289.75
  6. Step 6: Final answer
    x = 187,459.26

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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.