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Finding the Fourth Proportional to 60,747.84, 90,661.14 and 59,173.20

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Solution

The fourth proportional to 60,747.84, 90,661.14 and 59,173.20 is: 88,311.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,747.84 : 90,661.14 = 59,173.20 : x
  2. Step 2: Convert to fraction form
    60,747.84/90,661.14 = 59,173.20/x
  3. Step 3: Cross multiply
    60,747.84x = 90,661.14 × 59,173.20
  4. Step 4: Simplify right side
    60,747.84x = 5,364,709,769.45
  5. Step 5: Solve for x
    x = 5,364,709,769.45/60,747.84
  6. Step 6: Final answer
    x = 88,311.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.