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Finding the Fourth Proportional to 185,237.71, 255,628.31 and 100,354.77

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Solution

The fourth proportional to 185,237.71, 255,628.31 and 100,354.77 is: 138,489.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,237.71 : 255,628.31 = 100,354.77 : x
  2. Step 2: Convert to fraction form
    185,237.71/255,628.31 = 100,354.77/x
  3. Step 3: Cross multiply
    185,237.71x = 255,628.31 × 100,354.77
  4. Step 4: Simplify right side
    185,237.71x = 25,653,519,753.76
  5. Step 5: Solve for x
    x = 25,653,519,753.76/185,237.71
  6. Step 6: Final answer
    x = 138,489.73

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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.