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Finding the Fourth Proportional to 73,707.40, 110,447.70 and 54,899.20

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Solution

The fourth proportional to 73,707.40, 110,447.70 and 54,899.20 is: 82,264.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,707.40 : 110,447.70 = 54,899.20 : x
  2. Step 2: Convert to fraction form
    73,707.40/110,447.70 = 54,899.20/x
  3. Step 3: Cross multiply
    73,707.40x = 110,447.70 × 54,899.20
  4. Step 4: Simplify right side
    73,707.40x = 6,063,490,371.84
  5. Step 5: Solve for x
    x = 6,063,490,371.84/73,707.40
  6. Step 6: Final answer
    x = 82,264.34

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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.