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Finding the Fourth Proportional to 79,583.60, 119,430.60 and 59,903.60

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Solution

The fourth proportional to 79,583.60, 119,430.60 and 59,903.60 is: 89,896.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,583.60 : 119,430.60 = 59,903.60 : x
  2. Step 2: Convert to fraction form
    79,583.60/119,430.60 = 59,903.60/x
  3. Step 3: Cross multiply
    79,583.60x = 119,430.60 × 59,903.60
  4. Step 4: Simplify right side
    79,583.60x = 7,154,322,890.16
  5. Step 5: Solve for x
    x = 7,154,322,890.16/79,583.60
  6. Step 6: Final answer
    x = 89,896.95

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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.