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Finding the Fourth Proportional to 80,871.03, 111,602.47 and 46,899.66

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Solution

The fourth proportional to 80,871.03, 111,602.47 and 46,899.66 is: 64,721.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,871.03 : 111,602.47 = 46,899.66 : x
  2. Step 2: Convert to fraction form
    80,871.03/111,602.47 = 46,899.66/x
  3. Step 3: Cross multiply
    80,871.03x = 111,602.47 × 46,899.66
  4. Step 4: Simplify right side
    80,871.03x = 5,234,117,841.57
  5. Step 5: Solve for x
    x = 5,234,117,841.57/80,871.03
  6. Step 6: Final answer
    x = 64,721.79

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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.