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Finding the Fourth Proportional to 79,484.42, 109,688.97 and 43,673.51

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Solution

The fourth proportional to 79,484.42, 109,688.97 and 43,673.51 is: 60,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,484.42 : 109,688.97 = 43,673.51 : x
  2. Step 2: Convert to fraction form
    79,484.42/109,688.97 = 43,673.51/x
  3. Step 3: Cross multiply
    79,484.42x = 109,688.97 × 43,673.51
  4. Step 4: Simplify right side
    79,484.42x = 4,790,501,779.74
  5. Step 5: Solve for x
    x = 4,790,501,779.74/79,484.42
  6. Step 6: Final answer
    x = 60,269.70

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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.