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Finding the Fourth Proportional to 110,149.56, 152,009.70 and 77,941.92

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Solution

The fourth proportional to 110,149.56, 152,009.70 and 77,941.92 is: 107,562.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,149.56 : 152,009.70 = 77,941.92 : x
  2. Step 2: Convert to fraction form
    110,149.56/152,009.70 = 77,941.92/x
  3. Step 3: Cross multiply
    110,149.56x = 152,009.70 × 77,941.92
  4. Step 4: Simplify right side
    110,149.56x = 11,847,927,876.62
  5. Step 5: Solve for x
    x = 11,847,927,876.62/110,149.56
  6. Step 6: Final answer
    x = 107,562.19

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1.5x scale

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.