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Finding the Fourth Proportional to 60,393.98, 90,543.30 and 38,160.50

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Solution

The fourth proportional to 60,393.98, 90,543.30 and 38,160.50 is: 57,210.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,393.98 : 90,543.30 = 38,160.50 : x
  2. Step 2: Convert to fraction form
    60,393.98/90,543.30 = 38,160.50/x
  3. Step 3: Cross multiply
    60,393.98x = 90,543.30 × 38,160.50
  4. Step 4: Simplify right side
    60,393.98x = 3,455,177,146.93
  5. Step 5: Solve for x
    x = 3,455,177,146.93/60,393.98
  6. Step 6: Final answer
    x = 57,210.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.