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Finding the Fourth Proportional to 124,551.60, 186,438.60 and 89,559.60

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Solution

The fourth proportional to 124,551.60, 186,438.60 and 89,559.60 is: 134,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,551.60 : 186,438.60 = 89,559.60 : x
  2. Step 2: Convert to fraction form
    124,551.60/186,438.60 = 89,559.60/x
  3. Step 3: Cross multiply
    124,551.60x = 186,438.60 × 89,559.60
  4. Step 4: Simplify right side
    124,551.60x = 16,697,366,440.56
  5. Step 5: Solve for x
    x = 16,697,366,440.56/124,551.60
  6. Step 6: Final answer
    x = 134,059.83

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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.