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Finding the Fourth Proportional to 111,073.41, 153,289.53 and 63,327.96

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Solution

The fourth proportional to 111,073.41, 153,289.53 and 63,327.96 is: 87,397.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,073.41 : 153,289.53 = 63,327.96 : x
  2. Step 2: Convert to fraction form
    111,073.41/153,289.53 = 63,327.96/x
  3. Step 3: Cross multiply
    111,073.41x = 153,289.53 × 63,327.96
  4. Step 4: Simplify right side
    111,073.41x = 9,707,513,224.26
  5. Step 5: Solve for x
    x = 9,707,513,224.26/111,073.41
  6. Step 6: Final answer
    x = 87,397.27

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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.