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Finding the Fourth Proportional to 80,368.72, 110,911.40 and 44,562.06

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Solution

The fourth proportional to 80,368.72, 110,911.40 and 44,562.06 is: 61,497.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,368.72 : 110,911.40 = 44,562.06 : x
  2. Step 2: Convert to fraction form
    80,368.72/110,911.40 = 44,562.06/x
  3. Step 3: Cross multiply
    80,368.72x = 110,911.40 × 44,562.06
  4. Step 4: Simplify right side
    80,368.72x = 4,942,440,461.48
  5. Step 5: Solve for x
    x = 4,942,440,461.48/80,368.72
  6. Step 6: Final answer
    x = 61,497.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.