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Finding the Fourth Proportional to 127,933.60, 191,900.40 and 115,686.40

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Solution

The fourth proportional to 127,933.60, 191,900.40 and 115,686.40 is: 173,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,933.60 : 191,900.40 = 115,686.40 : x
  2. Step 2: Convert to fraction form
    127,933.60/191,900.40 = 115,686.40/x
  3. Step 3: Cross multiply
    127,933.60x = 191,900.40 × 115,686.40
  4. Step 4: Simplify right side
    127,933.60x = 22,200,266,434.56
  5. Step 5: Solve for x
    x = 22,200,266,434.56/127,933.60
  6. Step 6: Final answer
    x = 173,529.60

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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.