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Finding the Fourth Proportional to 60,899.80, 84,042.18 and 34,043.40

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Solution

The fourth proportional to 60,899.80, 84,042.18 and 34,043.40 is: 46,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,899.80 : 84,042.18 = 34,043.40 : x
  2. Step 2: Convert to fraction form
    60,899.80/84,042.18 = 34,043.40/x
  3. Step 3: Cross multiply
    60,899.80x = 84,042.18 × 34,043.40
  4. Step 4: Simplify right side
    60,899.80x = 2,861,081,550.61
  5. Step 5: Solve for x
    x = 2,861,081,550.61/60,899.80
  6. Step 6: Final answer
    x = 46,980.15

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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.