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Finding the Fourth Proportional to 127,775.64, 191,675.34 and 43,507.56

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Solution

The fourth proportional to 127,775.64, 191,675.34 and 43,507.56 is: 65,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,775.64 : 191,675.34 = 43,507.56 : x
  2. Step 2: Convert to fraction form
    127,775.64/191,675.34 = 43,507.56/x
  3. Step 3: Cross multiply
    127,775.64x = 191,675.34 × 43,507.56
  4. Step 4: Simplify right side
    127,775.64x = 8,339,326,355.57
  5. Step 5: Solve for x
    x = 8,339,326,355.57/127,775.64
  6. Step 6: Final answer
    x = 65,265.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.