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Finding the Fourth Proportional to 185,601.81, 256,130.51 and 100,718.87

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Solution

The fourth proportional to 185,601.81, 256,130.51 and 100,718.87 is: 138,992.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,601.81 : 256,130.51 = 100,718.87 : x
  2. Step 2: Convert to fraction form
    185,601.81/256,130.51 = 100,718.87/x
  3. Step 3: Cross multiply
    185,601.81x = 256,130.51 × 100,718.87
  4. Step 4: Simplify right side
    185,601.81x = 25,797,174,475.84
  5. Step 5: Solve for x
    x = 25,797,174,475.84/185,601.81
  6. Step 6: Final answer
    x = 138,992.04

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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.