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Finding the Fourth Proportional to 187,761, 259,110.24 and 112,327.32

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Solution

The fourth proportional to 187,761, 259,110.24 and 112,327.32 is: 155,011.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,761 : 259,110.24 = 112,327.32 : x
  2. Step 2: Convert to fraction form
    187,761/259,110.24 = 112,327.32/x
  3. Step 3: Cross multiply
    187,761x = 259,110.24 × 112,327.32
  4. Step 4: Simplify right side
    187,761x = 29,105,158,843.76
  5. Step 5: Solve for x
    x = 29,105,158,843.76/187,761
  6. Step 6: Final answer
    x = 155,011.74

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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.