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Finding the Fourth Proportional to 60,985.98, 84,149.58 and 35,140.50

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Solution

The fourth proportional to 60,985.98, 84,149.58 and 35,140.50 is: 48,487.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,985.98 : 84,149.58 = 35,140.50 : x
  2. Step 2: Convert to fraction form
    60,985.98/84,149.58 = 35,140.50/x
  3. Step 3: Cross multiply
    60,985.98x = 84,149.58 × 35,140.50
  4. Step 4: Simplify right side
    60,985.98x = 2,957,058,447.77
  5. Step 5: Solve for x
    x = 2,957,058,447.77/60,985.98
  6. Step 6: Final answer
    x = 48,487.51

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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.