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Finding the Fourth Proportional to 126,689.34, 190,003.77 and 37,919.01

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Solution

The fourth proportional to 126,689.34, 190,003.77 and 37,919.01 is: 56,869.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,689.34 : 190,003.77 = 37,919.01 : x
  2. Step 2: Convert to fraction form
    126,689.34/190,003.77 = 37,919.01/x
  3. Step 3: Cross multiply
    126,689.34x = 190,003.77 × 37,919.01
  4. Step 4: Simplify right side
    126,689.34x = 7,204,754,854.67
  5. Step 5: Solve for x
    x = 7,204,754,854.67/126,689.34
  6. Step 6: Final answer
    x = 56,869.46

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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.