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Finding the Fourth Proportional to 60,970.48, 84,102.43 and 40,274.10

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Solution

The fourth proportional to 60,970.48, 84,102.43 and 40,274.10 is: 55,553.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,970.48 : 84,102.43 = 40,274.10 : x
  2. Step 2: Convert to fraction form
    60,970.48/84,102.43 = 40,274.10/x
  3. Step 3: Cross multiply
    60,970.48x = 84,102.43 × 40,274.10
  4. Step 4: Simplify right side
    60,970.48x = 3,387,149,890.76
  5. Step 5: Solve for x
    x = 3,387,149,890.76/60,970.48
  6. Step 6: Final answer
    x = 55,553.93

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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.