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Finding the Fourth Proportional to 60,677.79, 83,696.26 and 40,259.41

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Solution

The fourth proportional to 60,677.79, 83,696.26 and 40,259.41 is: 55,532.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,677.79 : 83,696.26 = 40,259.41 : x
  2. Step 2: Convert to fraction form
    60,677.79/83,696.26 = 40,259.41/x
  3. Step 3: Cross multiply
    60,677.79x = 83,696.26 × 40,259.41
  4. Step 4: Simplify right side
    60,677.79x = 3,369,562,046.81
  5. Step 5: Solve for x
    x = 3,369,562,046.81/60,677.79
  6. Step 6: Final answer
    x = 55,532.05

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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.