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Finding the Fourth Proportional to 59,868.40, 89,813.40 and 30,211.60

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Solution

The fourth proportional to 59,868.40, 89,813.40 and 30,211.60 is: 45,322.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,868.40 : 89,813.40 = 30,211.60 : x
  2. Step 2: Convert to fraction form
    59,868.40/89,813.40 = 30,211.60/x
  3. Step 3: Cross multiply
    59,868.40x = 89,813.40 × 30,211.60
  4. Step 4: Simplify right side
    59,868.40x = 2,713,406,515.44
  5. Step 5: Solve for x
    x = 2,713,406,515.44/59,868.40
  6. Step 6: Final answer
    x = 45,322.85

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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.