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Finding the Fourth Proportional to 187,908.58, 259,325.85 and 124,134.58

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Solution

The fourth proportional to 187,908.58, 259,325.85 and 124,134.58 is: 171,313.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,908.58 : 259,325.85 = 124,134.58 : x
  2. Step 2: Convert to fraction form
    187,908.58/259,325.85 = 124,134.58/x
  3. Step 3: Cross multiply
    187,908.58x = 259,325.85 × 124,134.58
  4. Step 4: Simplify right side
    187,908.58x = 32,191,305,472.89
  5. Step 5: Solve for x
    x = 32,191,305,472.89/187,908.58
  6. Step 6: Final answer
    x = 171,313.65

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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.