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Finding the Fourth Proportional to 80,641.63, 111,287.87 and 44,341.20

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Solution

The fourth proportional to 80,641.63, 111,287.87 and 44,341.20 is: 61,192.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,641.63 : 111,287.87 = 44,341.20 : x
  2. Step 2: Convert to fraction form
    80,641.63/111,287.87 = 44,341.20/x
  3. Step 3: Cross multiply
    80,641.63x = 111,287.87 × 44,341.20
  4. Step 4: Simplify right side
    80,641.63x = 4,934,637,701.24
  5. Step 5: Solve for x
    x = 4,934,637,701.24/80,641.63
  6. Step 6: Final answer
    x = 61,192.19

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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.