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Finding the Fourth Proportional to 79,340.95, 109,489.84 and 43,042.29

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Solution

The fourth proportional to 79,340.95, 109,489.84 and 43,042.29 is: 59,398.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,340.95 : 109,489.84 = 43,042.29 : x
  2. Step 2: Convert to fraction form
    79,340.95/109,489.84 = 43,042.29/x
  3. Step 3: Cross multiply
    79,340.95x = 109,489.84 × 43,042.29
  4. Step 4: Simplify right side
    79,340.95x = 4,712,693,445.33
  5. Step 5: Solve for x
    x = 4,712,693,445.33/79,340.95
  6. Step 6: Final answer
    x = 59,398.00

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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.