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Finding the Fourth Proportional to 110,829.40, 166,010.10 and 73,407.40

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Solution

The fourth proportional to 110,829.40, 166,010.10 and 73,407.40 is: 109,956.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,829.40 : 166,010.10 = 73,407.40 : x
  2. Step 2: Convert to fraction form
    110,829.40/166,010.10 = 73,407.40/x
  3. Step 3: Cross multiply
    110,829.40x = 166,010.10 × 73,407.40
  4. Step 4: Simplify right side
    110,829.40x = 12,186,369,814.74
  5. Step 5: Solve for x
    x = 12,186,369,814.74/110,829.40
  6. Step 6: Final answer
    x = 109,956.11

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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.