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Finding the Fourth Proportional to 185,779.80, 256,374.69 and 100,896.87

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Solution

The fourth proportional to 185,779.80, 256,374.69 and 100,896.87 is: 139,236.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,779.80 : 256,374.69 = 100,896.87 : x
  2. Step 2: Convert to fraction form
    185,779.80/256,374.69 = 100,896.87/x
  3. Step 3: Cross multiply
    185,779.80x = 256,374.69 × 100,896.87
  4. Step 4: Simplify right side
    185,779.80x = 25,867,403,768.22
  5. Step 5: Solve for x
    x = 25,867,403,768.22/185,779.80
  6. Step 6: Final answer
    x = 139,236.90

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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.