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Finding the Fourth Proportional to 185,900.54, 256,521.92 and 105,310.82

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Solution

The fourth proportional to 185,900.54, 256,521.92 and 105,310.82 is: 145,317.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,900.54 : 256,521.92 = 105,310.82 : x
  2. Step 2: Convert to fraction form
    185,900.54/256,521.92 = 105,310.82/x
  3. Step 3: Cross multiply
    185,900.54x = 256,521.92 × 105,310.82
  4. Step 4: Simplify right side
    185,900.54x = 27,014,533,743.17
  5. Step 5: Solve for x
    x = 27,014,533,743.17/185,900.54
  6. Step 6: Final answer
    x = 145,317.13

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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.