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Finding the Fourth Proportional to 127,406.67, 191,100.24 and 38,660.64

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Solution

The fourth proportional to 127,406.67, 191,100.24 and 38,660.64 is: 57,988.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,406.67 : 191,100.24 = 38,660.64 : x
  2. Step 2: Convert to fraction form
    127,406.67/191,100.24 = 38,660.64/x
  3. Step 3: Cross multiply
    127,406.67x = 191,100.24 × 38,660.64
  4. Step 4: Simplify right side
    127,406.67x = 7,388,057,582.55
  5. Step 5: Solve for x
    x = 7,388,057,582.55/127,406.67
  6. Step 6: Final answer
    x = 57,988.00

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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.