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Finding the Fourth Proportional to 79,613.90, 109,869.04 and 43,804.81

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Solution

The fourth proportional to 79,613.90, 109,869.04 and 43,804.81 is: 60,451.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,613.90 : 109,869.04 = 43,804.81 : x
  2. Step 2: Convert to fraction form
    79,613.90/109,869.04 = 43,804.81/x
  3. Step 3: Cross multiply
    79,613.90x = 109,869.04 × 43,804.81
  4. Step 4: Simplify right side
    79,613.90x = 4,812,792,422.08
  5. Step 5: Solve for x
    x = 4,812,792,422.08/79,613.90
  6. Step 6: Final answer
    x = 60,451.66

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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.