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Finding the Fourth Proportional to 119,059.20, 178,437.60 and 59,911.20

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Solution

The fourth proportional to 119,059.20, 178,437.60 and 59,911.20 is: 89,790.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,059.20 : 178,437.60 = 59,911.20 : x
  2. Step 2: Convert to fraction form
    119,059.20/178,437.60 = 59,911.20/x
  3. Step 3: Cross multiply
    119,059.20x = 178,437.60 × 59,911.20
  4. Step 4: Simplify right side
    119,059.20x = 10,690,410,741.12
  5. Step 5: Solve for x
    x = 10,690,410,741.12/119,059.20
  6. Step 6: Final answer
    x = 89,790.72

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1.5x scale

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.