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Finding the Fourth Proportional to 60,135.81, 83,055.95 and 40,982.55

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Solution

The fourth proportional to 60,135.81, 83,055.95 and 40,982.55 is: 56,602.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,135.81 : 83,055.95 = 40,982.55 : x
  2. Step 2: Convert to fraction form
    60,135.81/83,055.95 = 40,982.55/x
  3. Step 3: Cross multiply
    60,135.81x = 83,055.95 × 40,982.55
  4. Step 4: Simplify right side
    60,135.81x = 3,403,844,623.67
  5. Step 5: Solve for x
    x = 3,403,844,623.67/60,135.81
  6. Step 6: Final answer
    x = 56,602.62

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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.