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Finding the Fourth Proportional to 60,986.32, 84,187.65 and 43,770.98

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Solution

The fourth proportional to 60,986.32, 84,187.65 and 43,770.98 is: 60,423.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,986.32 : 84,187.65 = 43,770.98 : x
  2. Step 2: Convert to fraction form
    60,986.32/84,187.65 = 43,770.98/x
  3. Step 3: Cross multiply
    60,986.32x = 84,187.65 × 43,770.98
  4. Step 4: Simplify right side
    60,986.32x = 3,684,976,319.01
  5. Step 5: Solve for x
    x = 3,684,976,319.01/60,986.32
  6. Step 6: Final answer
    x = 60,423.00

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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.