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Finding the Fourth Proportional to 316,652.44, 436,981.03 and 171,459.81

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Solution

The fourth proportional to 316,652.44, 436,981.03 and 171,459.81 is: 236,614.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,652.44 : 436,981.03 = 171,459.81 : x
  2. Step 2: Convert to fraction form
    316,652.44/436,981.03 = 171,459.81/x
  3. Step 3: Cross multiply
    316,652.44x = 436,981.03 × 171,459.81
  4. Step 4: Simplify right side
    316,652.44x = 74,924,683,274.54
  5. Step 5: Solve for x
    x = 74,924,683,274.54/316,652.44
  6. Step 6: Final answer
    x = 236,614.89

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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.