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Finding the Fourth Proportional to 127,662.14, 191,437.80 and 43,399.70

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Solution

The fourth proportional to 127,662.14, 191,437.80 and 43,399.70 is: 65,080.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,662.14 : 191,437.80 = 43,399.70 : x
  2. Step 2: Convert to fraction form
    127,662.14/191,437.80 = 43,399.70/x
  3. Step 3: Cross multiply
    127,662.14x = 191,437.80 × 43,399.70
  4. Step 4: Simplify right side
    127,662.14x = 8,308,343,088.66
  5. Step 5: Solve for x
    x = 8,308,343,088.66/127,662.14
  6. Step 6: Final answer
    x = 65,080.71

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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.