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Finding the Fourth Proportional to 80,548.61, 111,154 and 44,740.91

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Solution

The fourth proportional to 80,548.61, 111,154 and 44,740.91 is: 61,740.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,548.61 : 111,154 = 44,740.91 : x
  2. Step 2: Convert to fraction form
    80,548.61/111,154 = 44,740.91/x
  3. Step 3: Cross multiply
    80,548.61x = 111,154 × 44,740.91
  4. Step 4: Simplify right side
    80,548.61x = 4,973,131,110.14
  5. Step 5: Solve for x
    x = 4,973,131,110.14/80,548.61
  6. Step 6: Final answer
    x = 61,740.74

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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.