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Finding the Fourth Proportional to 61,206.76, 91,706.46 and 48,765.16

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Solution

The fourth proportional to 61,206.76, 91,706.46 and 48,765.16 is: 73,065.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,206.76 : 91,706.46 = 48,765.16 : x
  2. Step 2: Convert to fraction form
    61,206.76/91,706.46 = 48,765.16/x
  3. Step 3: Cross multiply
    61,206.76x = 91,706.46 × 48,765.16
  4. Step 4: Simplify right side
    61,206.76x = 4,472,080,194.93
  5. Step 5: Solve for x
    x = 4,472,080,194.93/61,206.76
  6. Step 6: Final answer
    x = 73,065.14

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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.