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Finding the Fourth Proportional to 68,323.55, 101,806.09 and 60,870.74

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Solution

The fourth proportional to 68,323.55, 101,806.09 and 60,870.74 is: 90,700.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,323.55 : 101,806.09 = 60,870.74 : x
  2. Step 2: Convert to fraction form
    68,323.55/101,806.09 = 60,870.74/x
  3. Step 3: Cross multiply
    68,323.55x = 101,806.09 × 60,870.74
  4. Step 4: Simplify right side
    68,323.55x = 6,197,012,034.81
  5. Step 5: Solve for x
    x = 6,197,012,034.81/68,323.55
  6. Step 6: Final answer
    x = 90,700.97

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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.