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Finding the Fourth Proportional to 126,460.80, 189,700.80 and 37,707.36

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Solution

The fourth proportional to 126,460.80, 189,700.80 and 37,707.36 is: 56,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,460.80 : 189,700.80 = 37,707.36 : x
  2. Step 2: Convert to fraction form
    126,460.80/189,700.80 = 37,707.36/x
  3. Step 3: Cross multiply
    126,460.80x = 189,700.80 × 37,707.36
  4. Step 4: Simplify right side
    126,460.80x = 7,153,116,357.89
  5. Step 5: Solve for x
    x = 7,153,116,357.89/126,460.80
  6. Step 6: Final answer
    x = 56,563.90

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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.