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Finding the Fourth Proportional to 110,572.52, 165,615.66 and 91,379.63

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Solution

The fourth proportional to 110,572.52, 165,615.66 and 91,379.63 is: 136,868.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,572.52 : 165,615.66 = 91,379.63 : x
  2. Step 2: Convert to fraction form
    110,572.52/165,615.66 = 91,379.63/x
  3. Step 3: Cross multiply
    110,572.52x = 165,615.66 × 91,379.63
  4. Step 4: Simplify right side
    110,572.52x = 15,133,898,171.15
  5. Step 5: Solve for x
    x = 15,133,898,171.15/110,572.52
  6. Step 6: Final answer
    x = 136,868.53

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1.5x scale

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.